For as long as I have had my iPod Touch 2G, it has never had a Push Notification. Even after several different jailbreaks and/or restores. So, I don't know why I haven't had any push notifications. What could be stopping them from happening?! It can't be my router (heard that somewhere) because my friend's iPod 3G works fine. And the Push Notifications ARE turned on. I have quadroople checked that. So, what could it be? Oh! It hasn't worked from OS 2 & OS 3 to iOS 4.