Is anyone else having this problem? I don't recall having it in iOS 5.0, but since 5.01 its becoming more and more prevalent. Mail just won't get pushed, I have to load Mail for emails to come through. Sometimes it works, but most of the time it doesn't. Also, I have the Mail App running in the background but it doesn't seem to help. This never happened before iOS 5, seems like Apple is slipping here.