I took my iPad in Tuesday for a Genius appointment because of wifi problems. I've had it since launch and had all the on and off issues that others have reported. When I brought it in, they just switched it out. No questions, no diagnostic, not even hooking it up to a computer. Was this everyone else's experience if you've returned one? I got mine on launch day so it was out of the exchange period. It concerns me that this means they have no idea what is causing the problems or how many are affected... Just wanted to see if others had a similar experience!