Here's the latest update on the iOS 5 timeline:
BGR claims that beta 8 will be released on September 16 (this Friday) and that the GM should follow some time around Friday, September 23. BGR adds that Apple is seeking technical acceptance of the iOS 5 GM by its carrier partners by October 5. AppleInsider notes that an AppleCare call center was told to expect an eightfold increase in customer calls beginning on Monday, October 10, pointing to a potential launch on that day.
The timeline for iOS 5 -- and the next generation iPhone with it -- is at long last starting to fall into place.