October 2nd. Boy, the date sure creeped up on us, but it's here regardless -- the Samsung Galaxy S II has finally debuted on AT&T. Many of you who've been waiting several months for a subsidized GSM model in the US may find it hard to believe that you're able to head on over to the carrier's site and purchase one for a couple C-notes. Rest assured, we've checked it out ourselves and it's really, really there, waiting for you to click that "add to