While we wait for Apple to release iOS 5.0.2 to fix the remaining bugs that is affecting battery life, it has seeded the third beta version of iOS 5.1 to developers of iOS developer program.
iOS 5.1 beta 3 (build 9B5127a) is available for iPhone 4S, iPhone 4, iPhone 3GS, iPad 2, iPad 1, 3rd gen iPod touch and 4th gen iPod touch, but seems to be currently available only via over-the-air updates
