Another day, another problem for the iPhone 4. Today’s hot topic issue deals with its proximity sensor. According to a group of concerned iPhone owners on 9to5mac, the proximity sensor on the iPhone 4 isn’t quite sensitive enough and carriers a large potential for in-call issues. Users are reporting that the sensor has a tendency to think the phone is away from one’s face when it is in fact not. This can lead to user’s cheeks doing everything from muting calls to hitting the end button. Our devices aren’t suffering from this issue, but based upon what we’ve read there are quite a lot that are. How is your proximity sensor working out?