According to the report of AppleInsider, which quotes a person familiar with Apple’s AppleCare customer service call centers, Apple call center is expecting a large influx of iOS-related support calls beginning Monday, October 10th
Obviously this indicates that Apple will release iOS 5 to current users on that day.
That person told AppleInsider that his local AppleCare call center expects an eightfold increase in customer calls on that day, and that staff are being advised ahead of time for the increased traffic.
According to another report of BGR, Apple is planning to release the beta 8 of iOS 5 to developers on September 16th. After a week, a golden master version is believed to be released “on or around” September 23rd. And the golden master version is very likely to be loaded onto the already-assembled iPhone 5 hardware currently waiting for final software in China.
France Telecom CEO Stéphane Richard has reportedly claimed that the iPhone 5 appears set to debut on October 15th. As the top executive of a major iPhone partner Richard would be more likely to have accurate information than most. So you should get ready for the coming of iPhone 5 and iOS 5.