A model demonstrates a Nexus One smartphone, the first mobile phone Google will sell directly to consumers based on its Android platform, after a news conference at Google headquarters in Mountain View, California January 5, 2010. REUTERS/Robert GalbraithReuters – Google Inc said it no longer plans to offer a version of its Nexus One smartphone for the Verizon Wireless network and will change its distribution plans in Britain, underscoring the challenges facing the Internet search company as it expands into the mobile phone market.