I have to wonder how this would have turned out if Apple wasn't already taking a lot of heat for the new developer agreement. Perhaps they are tempering their stance.
Opera Mini is good for little more than simple content consumption on an extremely low-bandwidth diet (e.g. EDGE). For any sort of interactive, dynamic, or AJAX-y site or web app, it just doesn't cut it.
Case in point: http://twitpic.com/1f79bp