i was messing around in garageband.. using all the smart instruments.. when all of a sudden i was messing with the electric guitar and i was moving the strings.. and it locked up.. could not go back to instruments.. couldnt go back to home screen.. could not make ipad goto sleep.. tried numerous times.. finally i held down sleep button and home button and it went to sleep.. then i was able to reboot it.. went back into garageband and my song i was working on was still there.. i made a video with my phone i'll have to upload it to youtube.. anyone else?