Pocketnow has leaked an exclusive shot of all of Samsung’s Galaxy S II variants on Sprint, AT&T, and T-Mobile. You’ll notice both the T-mobile and Sprint versions are rounded, while the AT&T version is square. Besides the shape we don’t see any noticeable differences between the devices (besides the branding of course). You might be thinking, where’s the Verizon version? This week we reported that Verizon wouldn’t be carrying a Galaxy S II variant for the time being, and it was later confirmed by the WSJ.