so I've notice that push mail on iphone isn't working. I'm using mobileme and i notice that i would only get push mail IF mail is open in the background. is this the way its suppose to work? I'm jb and this morning i restore -> jb -> setup as new phone and the push with out mail open seem to work for a few hours than its back to not getting any mail until i manually open the mail app or leave it on in the background... phone problem or mobile me???