This year, like every year, one of the most common questions iMore's being asked is -- how many betas will the be before iOS 6 becomes available to the general public?
At WWDC 2012, when Apple announced iOS 6 and released the first beta, they also announced that iOS 6 would ship sometime this fall. (Presumably a couple of days before the next generation iPhone 5 ships. That gives us a window roughly spanning from September to November. We likely won't find out the exact date until the iPhone 5 event, which also hasn't been announced or scheduled yet, but will also likely be in the fall.
If we look to history for clues: