ok so i got my iphone and the push notification was already installed when i got it. it was working perfectly fine but then i moved to canada (from america). it was still working here in canada. but then i changed my american number (cell phone number) to canadian number. i think after that my push notification kind of stopped working. I still get some notification but get them late like after 2 -3 hours and most of the time i dont even get them. Can someone please help me out with this problem? i would really appreciate it... i have 3g iphone (version 3.1.2) thank you guys