Judging by the carpet bombing our inbox is currently undergoing, it looks like the official Android 2.2 update for the Evo 4G is under way. That's a tad earlier than we'd been told (though nobody here's complaining), and hopefully it bodes well for getting those of us on the earlier unofficial builds "back on track."
Update: We double-checked (can you blame us?) and this one's for real, folks. Have at it!