Apple tends to release new iOS upgrades like clockwork, which gives us a good indicator of when it should push iOS 6 to early adopters: 1PM Eastern, or 10AM Pacific and 5PM GMT. At that point, you can likely get your turn-by-turn and Passbook fixes through at least iTunes. The real question is whether the upgrade will be available directly from an iPad, iPhone or iPod touch -- we've seen delta updates arrive over the air for iOS 5, after all, but not major OS revisions. There's only a few hours before we find out
