The guy who can give you the world is also the guy that can take it away. All of you with non-Apple approved iPhone apps may have a reason to get concerned, because it seems that Cupertino can remove apps from your iPhone remotely. You don’t even need to come to a Genius Bar.
We already know that Apple has the power to remove applications from the App Store at will if they don’t like what the app does, but Apple is actually even more powerful than that. It may not be completely true that they can remove the app from your iPhone, but they can remotely disable it, which is effectively doing the same thing.
Beware bad guys. Steve Jobs is watching you.