I'm also having problems with gettin stuck in landscape mode even when i try to turn my pad. But Star Trek is great (I still like TZ bettter, however).
So you won't buy AFM until the UI is fixed? I guess you really aren't that into pinball then. Enjoy the wait. I will be playing every table the moment I realize they are released. Can't wait for AFM. Bring on the Martians.
@pinballchris:
I know you said you "cleared all active apps"...you might want to try a non-destructive reset (won't delete anything nor reset any settings).
Press and hold (& continue to hold) both the home and lock buttons on the iPad until you see the Apple logo (ignore any on-screen messages). After you see the Apple logo, you can release the buttons. See if the reset helps with the stuttering. I have an iPad 3 as well and have never seen any stuttering...but then I also periodically perform a reset.
Butterkins, on iPad 3 it rotates for me after I have selected the table and it has loaded, but before I've hit the big yellow start button in the middle to begin the game.