Prevent users from installing or deleting their own apps, taking pictures with the iPad camera, watching movies and TV shows and playing network games.
While the cause is at present unclear, some users are pointing fingers at a problem with email accounts, and that deleting and recreating the accounts solves the problem.
The switch has seemingly resurrected many messages users formerly deleted with some reporting that they had to go through thousands of messages before deleting them for a second time.
Some Tumblr users are seeing their pages replaced with several dozen duplicate posts from a known hacker group, warning that deleting said message will delete the Tumblr page in question (it's unclear if this is actually true, but seems to be false in our testing).