Who knew AT&T's version of the Samsung Galaxy S II had a younger, larger brother on the way? Just a hair over a month after the carrier launched its flagship Android device, it's already set for another go-round. This one, the Galaxy S II Skyrocket, offers a larger display and "true" 4G connectivity -- yes, it's a pioneer blazing a new trail to Ma Bell's wild and untamed frontier, right alongside the HTC Vivid. It's time to answer the burning questions: what kinds of speeds are possible on AT&T's
