Google unveils AT&T-compatible Nexus One
Google’s Nexus One smartphone was unveiled in January for use only on the T-Mobile network. Recently Google announced a Nexus One compatible with AT&T’s 3G network.
Unlike the T-Mobile version of the Nexus One, the AT&T-compatible model isn’t available at a subsidy from the carrier. Customers have to buy the unlocked AT&T-compatible version of the phone.
The AT&T version of the Nexus One is also compatible with the Rogers network in Canada, the same provider that sells the iPhone and, for the first time, Google will ship the device to Canada.
While both T-Mobile and AT&T use GSM-based cell phone standards, the two networks use different frequency bands for their respective 3G traffic. Hence, the T-Mobile-compatible unlocked Nexus One could be used on AT&T, but only at EDGE speeds. Both the T-Mobile and AT&T versions of the Nexus One can be used internationally in most countries.



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It is not the first time Google has tried to launch a social network. In 2004, it released Orkut. Recently Google Inc. has signed deal to buy a San Francisco based Internet search and social networking company named 
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