Apple was reportedly investigating the issues in iOS 5 and iOS 5.0.1 which caused battery problems. Apple now has been reported to be releasing iOS 5.0.2 by the end of the next week.
The technology blog also reported that Apple is currently working on iOS 5.1 to bring new Siri capabilities. In other words, iOS 5.1 will make Siri smarter.The new iOS 5.1 update is also expected to bring Maps integration with Siri to additional countries. However, the report didn’t reveal the release date of iOS 5.1.