I am going to return my 16 gig touch as I purchased a 32 gig one... My question is: Does reloading the firmware really wipe the flash memory? I don't care if they "know" I used jailbreak, etc.. I just don't want anyone to hack into it somehow and get bank account info, passwords, etc. What's the best method for ensuring no data is left behind? I was thinking of ssh and deleting everything, then loading a 16 gig file of random crap onto it, then reinstalling firmware....but is it nessesary? Thanks.