This seems to be a target date as noted by 9to5mac. But what we expect is that Apple will be releasing the next beta in next week because Apple released iOS 5 Beta 5 previous week. Those who tried iOS 5 Beta 5 reported that the current beta is more stable than the previous one. So we think that the next Beta which will be Beta 6 would be more stable and got a lot of bugs fixed.
So hopefully after the 6th Beta Apple will release the GM and after that finally iOS 5 is made public. This whole procedure will take about 2 to 3 weeks as far as we expect. So expect the release in the first week of September.
What do you people think? When iOS 5 will hit public?