I was at the Hartford Convention Center this weekend and had two ipad 1's in my bag next to a big column. After about 2 hours I went to use one and the factory apps worked ok but my downloaded apps just flashed but did not open. After about another hour I tried the other ipad which was in the bag and it had reset back to the brand new setup stage. I put the one that partially worked back in the bag and one hour later it also was back to new setup state. Got home today and restored from my back-up everything works fine. Only thing I could think of was that the column had power lines for the lights which created a magnetic field which wiped out the memory. Anyone ever have something like this happen to them.