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Models display electronic tablets from Japanese electronics maker Sharp called the 'Galapagos', which come in 5.5-inch and 10.8-inch sizes, in Tokyo on September 27, 2010. The new e-book player, based on Google's Android OS and can display XMDF formatted rich content, such as video images. Sharp will start the e-book service from December.

Microsoft Chief Executive Steve Ballmer unveils Windows Phone 7 (WP7) , a new mobile phone operating system, as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010.

Attendees test devices running Windows Phone 7 (WP7), a new mobile phone operating system as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010. Microsoft Chief Executive Steve Ballmer unveiled WP7.

NEW YORK - OCTOBER 11: A person holds a new Windows Phone 7 mobile operating system on October 11, 2010 in New York, New York. The phone, which will be available in the United States on AT&T's network, looks to compete with the iPhone, Android and BlackBerry smartphones.

NEW YORK - OCTOBER 11: Microsoft CEO Steve Ballmer introduces the new Windows Phone 7 mobile operating system on October 11, 2010 in New York, New York. The phone, which will be available in the United States on AT&T's network, looks to compete with the iPhone, Android and BlackBerry smartphones.

Devices running Windows Phone 7 (WP7) are on display, a new mobile phone operating system as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010. Microsoft Chief Executive Steve Ballmer unveiled WP7.

Microsoft Chief Executive Steve Ballmer unveils Windows Phone 7 (WP7) , a new mobile phone operating system, as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010.

A South Korean model shows Samsung Electronics' tablet computer, the Galaxy Tab, during a launching ceremony in Seoul on November 4, 2010. South Korea's Samsung Electronics launched its tablet computer in the domestic market and said it aims to sell more than a million of the Galaxy Tabs worldwide by the end of this year. The Galaxy Tab, powered by Google's Android software and featuring cameras front and back, has a seven-inch (18-centimetre) touch screen.

Softbank president Masayoshi Son introduces a new smart phone with glassless 3D display called the 'Galapagos 003SH' in Tokyo on November 4, 2010. The new smart phone, produced by Sharp has a 3.8-inch 3D LCD display and is based on Google's Android OS.

Guests browse through applications on Microsoft's new mobile phone operating system during a launch in Singapore on October 12, 2010. Microsoft unveiled a new mobile phone operating system on October 11 in a bid to claw back lost market share from the iPhone, Blackberry and devices powered by Google's Android software.

Microsoft Chief Executive Steve Ballmer unveils Windows Phone 7 (WP7), a new mobile phone operating system as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010.

NEW YORK - OCTOBER 11: Microsoft CEO Steve Ballmer introduces the new Windows Phone 7 mobile operating system on October 11, 2010 in New York, New York. The phone, which will be available in the United States on AT&T's network, look to compete with the iPhone, Android and BlackBerry smartphones.

NEW YORK - OCTOBER 11: A person holds a new Windows Phone 7 mobile operating system on October 11, 2010 in New York, New York. The phone, which will be available in the United States on AT&T's network, looks to compete with the iPhone, Android and BlackBerry smartphones.

Microsoft Chief Executive Steve Ballmer unveils Windows Phone 7 (WP7) , a new mobile phone operating system, as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010.

Indian film actress Riya Sen (R) and Nokia marketing chief Zairus Master (L) pose with Nokia N8 mobile phones with the Ovi service during its launch in Hyderabad on October 14, 2010. The N8 is considered to be a crucial development in Nokia's product line as it is a competitor to the iPhone, Blackberry, and Android-platform smart-phones that have been chipping away at the company's market share.

Indian film actress Riya Sen (R) and Nokia marketing chief Zairus Master (L) pose with Nokia N8 mobile phones with the Ovi service during its launch in Hyderabad on October 14, 2010. The N8 is considered to be a crucial development in Nokia's product line as it is a competitor to the iPhone, Blackberry, and Android-platform smart-phones that have been chipping away at the company's market share.

Microsoft Corporate Vice President Joe Belfiore introduces Windows Phone 7 (WP7) , a new mobile phone operating system as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010. Microsoft Chief Executive Steve Ballmer unveiled WP7.

Microsoft Chief Executive Steve Ballmer unveils Windows Phone 7 (WP7), a new mobile phone operating system as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010.

Devices running Windows Phone 7 (WP7) are on display, a new mobile phone operating system as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010. Microsoft Chief Executive Steve Ballmer unveiled WP7.

NEW YORK - OCTOBER 11: Microsoft CEO Steve Ballmer introduces the new Windows Phone 7 mobile operating system on October 11, 2010 in New York, New York. The phone, which will be available in the United States on AT&T's network, looks to compete with the iPhone, Android and BlackBerry smartphones.

NEW YORK - OCTOBER 11: A person holds a new Windows Phone 7 mobile operating system on October 11, 2010 in New York, New York. The phone, which will be available in the United States on AT&T's network, looks to compete with the iPhone, Android and BlackBerry smartphones.

A model displays the new smart phone with a glassless 3D display called the Softbank 'Galapagos 003SH' in Tokyo on November 4, 2010. The new smart phone, produced by japanese electronics giant Sharp has a 3.8-inch 3D LCD display and is based on Google's Android OS.

Softbank president Masayoshi Son (R) poses with fictional movie ogre 'Shrek' as he introduces a new smart phone with a glassless 3D display called the 'Galapagos 003SH' in Tokyo on November 4, 2010. The new smart phone, produced by Sharp has a 3.8-inch 3D LCD display and is based on Google's Android OS.

A model displays the new smart phone with a glassless 3D display called the Softbank 'Galapagos 003SH' in Tokyo on November 4, 2010. The new smart phone, produced by japanese electronics giant Sharp has a 3.8-inch 3D LCD display and is based on Google's Android OS.

Devices running Windows Phone 7 (WP7) are on display, a new mobile phone operating system as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010. Microsoft Chief Executive Steve Ballmer unveiled WP7.

A model displays an 5.5-inch size electronic tablet from Japanese electronics maker Sharp called the 'Galapagos' during a preview in Tokyo on September 27, 2010. The new e-book player, based on Google's Android OS and can display XMDF formatted rich content, such as video images. Sharp will start the e-book service from December.

NEW YORK - OCTOBER 11: People attend the opening of the new Windows Phone 7 mobile operating system on October 11, 2010 in New York, New York. The phone, which will be available in the United States on AT&T's network, looks to compete with the iPhone, Android and BlackBerry smartphones.

Microsoft Chief Executive Steve Ballmer unveils Windows Phone 7 (WP7) , a new mobile phone operating system, as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010.

Microsoft Chief Executive Steve Ballmer unveils Windows Phone 7 (WP7) , a new mobile phone operating system, as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010.

Microsoft Chief Executive Steve Ballmer unveils Windows Phone 7 (WP7), a new mobile phone operating system as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010.

AT&T Mobility and Consumer Markets President and CEO Ralph de la Vega speaks to unveil devices running Windows Phone 7 (WP7), a new mobile phone operating system as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010. Microsoft Chief Executive Steve Ballmer unveiled WP7.

Indian film actress Riya Sen (R) and Nokia marketing chief Zairus Master (L) pose with Nokia N8 mobile phones with the Ovi service during its launch in Hyderabad on October 14, 2010. The N8 is considered to be a crucial development in Nokia's product line as it is a competitor to the iPhone, Blackberry, and Android-platform smart-phones that have been chipping away at the company's market share.

Pedestrians walk past signboards for Samsung Electronics' tablet computer, the Galaxy Tab, outside the company's main building in Seoul on November 4, 2010. South Korea's Samsung Electronics launched its tablet computer in the domestic market and said it aims to sell more than a million of the Galaxy Tabs worldwide by the end of this year. The Galaxy Tab, powered by Google's Android software and featuring cameras front and back, has a seven-inch (18-centimetre) touch screen.

Models display electronic tablets from Japanese electronics maker Sharp called the 'Galapagos', which come in 5.5-inch (L) and 10.8-inch sizes, in Tokyo on September 27, 2010. The new e-book player, based on Google's Android OS and can display XMDF formatted rich content, such as video images. Sharp will start the e-book service from December.

Models display Japan's second largest mobile carrier KDDI's new Android OS based smart phone 'IS-03', produced by Japanese electronics giant Sharp in Tokyo on October 4, 2010. The new smart phone, equipped with a double 3.5-inch high resolution (960 x 640-pixel) BW low consumption LCD, and a 9.57 mega-pixel CCD camera, will go on sale end of this year.

A model displays Japan's second largest mobile carrier KDDI's new Android OS based smart phone 'IS-03', produced by Japanese electronics giant Sharp in Tokyo on October 4, 2010. The new smart phone, equipped with a double 3.5-inch high resolution (960 x 640-pixel) BW low consumption LCD, and a 9.57 mega-pixel CCD camera, will go on sale end of this year.

Attendees test devices running Windows Phone 7 (WP7), a new mobile phone operating system as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010. Microsoft Chief Executive Steve Ballmer unveiled WP7.

NEW YORK - OCTOBER 11: A person holds a new Windows Phone 7 mobile operating system on October 11, 2010 in New York, New York. The phone, which will be available in the United States on AT&T's network, looks to compete with the iPhone, Android and BlackBerry smartphones.

NEW YORK - OCTOBER 11: People try the new Windows Phone 7 mobile operating system on October 11, 2010 in New York, New York. The phone, which will be available in the United States on AT&T's network, looks to compete with the iPhone, Android and BlackBerry smartphones.

NEW YORK - OCTOBER 11: People attend the opening of the new Windows Phone 7 mobile operating system on October 11, 2010 in New York, New York. The phone, which will be available in the United States on AT&T's network, looks to compete with the iPhone, Android and BlackBerry smartphones.

Microsoft Chief Executive Steve Ballmer unveils Windows Phone 7 (WP7), a new mobile phone operating system as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010.

Microsoft Chief Executive Steve Ballmer unveils Windows Phone 7 (WP7), a new mobile phone operating system as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010.

NEW YORK - OCTOBER 11: Microsoft CEO Steve Ballmer introduces the new Windows Phone 7 mobile operating system on October 11, 2010 in New York, New York. The phone, which will be available in the United States on AT&T's network, looks to compete with the iPhone, Android and BlackBerry smartphones.

NEW YORK - OCTOBER 11: A person holds a new Windows Phone 7 mobile operating system on October 11, 2010 in New York, New York. The phone, which will be available in the United States on AT&T's network, looks to compete with the iPhone, Android and BlackBerry smartphones.

Microsoft Chief Executive Steve Ballmer unveils Windows Phone 7 (WP7), a new mobile phone operating system as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010.

NEW YORK - OCTOBER 11: A person holds a new Windows Phone 7 mobile operating system on October 11, 2010 in New York, New York. The phone, which will be available in the United States on AT&T's network, looks to compete with the iPhone, Android and BlackBerry smartphones.

Devices running Windows Phone 7 (WP7) are on display, a new mobile phone operating system as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010. Microsoft Chief Executive Steve Ballmer unveiled WP7.

NEW YORK - OCTOBER 11: Microsoft CEO Steve Ballmer introduces the new Windows Phone 7 mobile operating system on October 11, 2010 in New York, New York. The phone, which will be available in the United States on AT&T's network, looks to compete with the iPhone, Android and BlackBerry smartphones.

A device running Windows Phone 7 (WP7) , a new mobile phone operating system, is projected during a presentation, as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010. Microsoft Chief Executive Steve Ballmer unveiled WP7.

Attendees test devices running Windows Phone 7 (WP7), a new mobile phone operating system as Microsoft seeks to regain ground lost to the iPhone, Blackberry and devices powered by Google's Android software, during an event in New York, October 11, 2010. Microsoft Chief Executive Steve Ballmer unveiled WP7.