The SGP Argos leather case I ordered last week came in today. I was worried because I thought I had mistakenly ordered a case that wouldn't fit my particular phone. I have the AT&T I777. I didn't think there were so many differences in Galaxy S II's until I started seeing videos and other reports of mismatched accessories. The case is labeled Galaxy S2 (i9100), so I thought, oops, wrong case. The last couple of days I have been looking at other cases to see if I could find something I liked to replace it, but I had no luck. I just wanted a nice leather case.
The SGP Samsung Galaxy S2 (i9100) Leather Case Argos Series [Black] fits my Galaxy S II, from AT&T, perfectly. Ain't nothin' better'n leather.