Image #: 18425518 Hugo Barra, director of product management of Google, unveils Nexus 7 tablet during Google I/O 2012 Conference at Moscone Center in San Francisco, California June 27, 2012. Google Inc unveiled a tablet co-branded with Taiwan’s Asustek Computer Inc and priced to compete with Amazon’s Kindle Fire device. Amazon’s Kindle Fire, which runs a version of Google’s Android operating system, sells for $199. REUTERS/Stephen Lam (UNITED STATES – Tags: BUSINESS SCIENCE TECHNOLOGY) REUTERS /STEPHEN LAM /LANDOV