It is destiny that the Samsung Galaxy SII will come to the US and that it would be distributed via various US carriers, carrying different names from various carriers. It would be known as the Attain for AT&T, Sprint’s Within, and Function for Verizon. Despite all of them having claim on what to be, “one of the best expected phone sales that would soon hit the market”, Samsung Galaxy Within from Sprint is the first to confirm that it will be out very soon.
How come? There has been a leak that came out, seeing the Galaxy SII being clothed and coated in Sprint fashion. Not only that, there is also a Blurrycam shot that shows the software details of the phone sporting Sprint as its network name. There are also tips that it will come out in Android 2.3.4 and will have full support for GTalk video. It is expected to be out sometime late July or in August, who knows.
Source: This is My Next