How the iPhone mail app decides when to show you new mail
This is a great breakdown, thanks. Now can you explain why so often I receive an email on the iPhone and one of two things happens:<p>1. I'm not in MobileMail.app, get a notification that an email arrives, but when I enter the app, nothing is there. When I manually hit the refresh mail button, the new message downloads and appears.<p>2. If I'm in MobileMail.app a new email arrives and I see it up top for a few seconds, and instantly it disappears. Again, I have to tap refresh to re-download the message.<p>Why does this happen?