Is AT&T next to carry the "pure Google" Android smartphone? (Credit: Samsung) A variant of the Nexus S optimized for AT&T's network has appeared on Samsung's Web site . Listed with a model number of GT-I9020A, the handset is strikingly similar to the Samsung I9020T currently supported by T-Mobile. The Web site specifically mentions AT&T and references the carrier's UMTS 850/1900 network bands, but with no announcement from Google or AT&T, this remains strictly unofficial at this point. Given that Sprint recently unveiled its version of the Nexus S, it would not surprise me to see a Verizon variant offered down the road. Samsung has been making it a practice to offer different iterations of the same device, especially those in the Galaxy S series. I'm very interested to see how AT&T handles this "pure Google" smartphone, considering it blocks the ability to install applications and games from anywhere but the offic...