NEW DELHI: Search giant Google's experiment in smartphone retailing is officially over. Some six months after the company launched its first superphone (as Google called it), HTC-designed Nexus One, it has stopped selling the devices through its online store. â€œSorry, folks...The Nexus One is no longer available for purchase directly from Google,â€ the company announced on its site. Google had warned users a month back about its plan to shut down the Web store. Google has promised that it will make the device available to 'registered developers' through a partner. The company acknowledged that its Nexus One retailing model failed to catch on with customers. â€œWhile the global adoption of the Android platform has exceeded our expectations, the web store has not,â€ wrote Andy Rubin, vice-president of engineering at Google in a blog post in May. â€œItâ€™s remained a niche channel for early adopters.â€ Google has refused to give any figure to the number of phones it sold during its brief stint as a phone retailer. The company welcomed year 2010 by launching its own smartphone Nexus One in January and selling it directly through its Web store.