If you delete them on your phone, it lets you. But, if you reboot your phone, they re-install. During this re-install the iphone is stuck on the apple screen for several minutes, without telling you whats going on. Thought I had a brick. Also, if you sync after deleting apps via the phone, they reinstall. And, its worse if you delete on the phone, then sync(without a reboot). My phones been stuck for more than 10 minutes now, at the Apple screen. Going to do a full reset, and see what happens next. I'm guessing the best way to delete apps, is via itunes, select install just some, do a sync to get them off the phone(hopefully), then delete the apps in itunes. But, that's just a guess, since I'm stuck for a while.