Apple Insider reports that Apple's first beta of iOS 5.1 issued to developers does not address battery problems experienced by some users

ABI Research's Michael Morgan spoke with ArsTechnica about the problems that some have reported since the release of iOS 5. In addition to existing iPhone users who updated their handset to iOS 5, the problems have been reported by those who have bought the new iPhone 4S, which comes with iOS 5 preinstalled.

Morgan said that although Apple has apparently not yet been able to solve the battery life issues for all users, an eventual software fix is still the most likely solution. He said that software is the most likely cause of the problems seen by some, not hardware.

  iPhone battery woes persist with Apple's first iOS 5.1 beta