@schwa Well, some important stuff just plain won't work. For example, sudo, hdiutil, probably some other interesting filesystem commands.
@schwa Have fun with those temporary entitlements.
@schwa As in letting the user type in a shell command? You can run files you have access to, but they're limited in the same way as your app
@siracusa Good question. But I think iBooks is automatically worse since you can't get at the text of your highlights.