Apple is planning to release just three more betas of iOS 7 before the gold master version debuts in early September, a BGR
source claims. Several sources suggest that beta 4 will go live later today, now that the Developer Center has been fully restored
. The code is expected to contain bugfixes, graphical and UI enhancements, and "a couple of other updates," according
If the suggested GM timing is correct, iOS 7 and/or new iPhones could ship in mid-to-late September. A gold master is essentially the finished version of a piece of software, issued to developers and/or manufacturers shortly before a product hits stores. To date, Apple has only confirmed that iOS 7 will reach the public sometime this fall.