Samsung is set to announce the U.S. variants of its GALAXY S II smartphone on Tuesday during a press event in New York City and a recent leak gives us a peak of what we can expect to be unveiled. On Friday, Pocketnow published a purported image of the GALAXY S II phones that are headed to AT&T, T-Mobile and Sprint. Judging from the picture, AT&T’s iteration remains relatively unchanged from the European model but we notice it does lack the hardware home button. The models headed toward T-Mobile and Sprint appear to ditch the sharp corners for more rounded edges. As we already know, Verizon Wireless will not announce a Galaxy S II model on August 29th, but we exclusively brought you the news that it will indeed offer a comparable device in the future. We also exclusively reported that Sprint’s S II will be branded as the Samsung Epic Touch 4G, and it looks like the name will stick when these sleek Samsung smartphones are unveiled on Tuesday. We’ll be on hand reporting live from the event, weather permitting.