After yesterday’s iPhone 3G revelry, the inevitable hangover. AT&T is done playing nice with iPhone customers. First off, the data plan for 3G is $10 more than the old plan. Second, in-store activation is required, “which takes 10-12 minutes”…with the old version of the iPhone, you could activate through iTunes and it took 2 minutes. (That means no online ordering of phones either.) Third, Apple and AT&T may be working on a purchase penalty for those who don’t activate their phones within 30 days…so no more buying a phone to use on another network. Four: no prepaid plans. Yay?