As noted by German technology blog Macerkopf.de that Apple will release iOS 5.0.2 to fix the remaining issues users are having with battery life. This information has been leaked from an unnamed Apple software engineer. iOS 5.0.2 scheduled to be released by the end of the next week.
Another important news is that Apple is working in a new significant update iOS 5.1 which will feature several enhancements and improvements to the new shinny Siri service. iOS 5.1 will give Siri the ability to access and use functions such as taking photos, recording videos, enabling or disabling Bluetooth and WiFi and more. The report didn't revealed the release date of iOS 5.1. Anyway We will update you once more information comes-in.