I've always assumed that you had to load the App Store to find out if you have any updates. But one of my friends seems to get App Store updates pushed (i.e. the badge count changes automatically). Mine doesn't do that - even with the App Store running in the background - I still have to switch to the app and then it'll check for updates. What is the proper behaviour for this? It it coincidence - seeing as his phone is jailbroken?