Count me among the ranks of disheartened. I upgraded my iPhone 3GS to version 3.0.1 the day the version was released, and until today, I have not had a single problem with apps launching. Now I cannot launch a single 3rd-party app on my phone, but like everyone else it seems, I can launch iPhone stock apps. Similarly, I can play iTunes+ songs, but I cannot play songs that I have not upgraded to iTunes+, and I cannot play any TV shows I have. When trying to play un-upgraded songs, the timeline continues to track as if the song is playing, but there is no audio; the TV shows throw an error that says the video cannot be played. I tried powering off the iPhone, resetting the iPhone, resyncing the iPhone, and restoring the iPhone, all to no avail. I've tried deleting and downloading a previously-purchased app, downloading a new app directly onto the phone, downloading an app onto my computer and syncing, and updating an app, also to no avail. I've tried deauthorizing and reauthorizing my computer, and syncing the phone after that. I've even tried signing out of my account in the app store on the phone and signing back in, but that didn't help. Basically, I've tried everything I can think of, except syncing the apps one-by-one as has been suggested, and restoring as a new device. I'm somewhat disinclined to do that last one, as I have data stored in some of my apps that I really don't want to lose. I think the strangest thing about this situation for me is that I've had this version running flawlessly for more than a month, and then it suddenly hit. Any ideas?
