What is the release date for the iPhone OS 4.1 firmware update?
UPDATE: Apple released iOS 4.1 on Wednesday September 8, 2010.
Apple has made the iOS 4.1 Beta 2 firmware available to developers for testing. The new version is expected to include many bug fixes and improvements including:
Fixing proximity sensor issues on the iPhone 4.
Correcting performance and battery issues on the iPhone 3G.
Apple has not announced an official release date for iOS 4.1. Looking at past firmware releases we can expect iOS 4.1 to launch during the second week of September. Check back for updates as new information becomes available.