It’s known that some iPhone 4 users are experiencing issues with its proximity sensor, including myself. People find themselves inadvertently ending and muting calls, punching in keys, and sending FaceTime requests. Jobs and company promised a fix to this, and it seems iOS 4.1 might just be the magical savior of the proximity sensor. This is based on non-scientific tests on two iPhone 4s as well as reader submissions.
Let us know in the comments if iOS 4.1 beta 2 solved your proximity sensor issues.