I'm in the process of selling my 'old' iPhone 3Gs 32GB on craigslist and getting the new 4G model. What can I do in order to delete all my personal data (pictures, calendar, contacts, notes....etc.) off the phone while still keeping the jailbreak ? Currently i'm at OS 3.1.2 Thanks Guys! p.s. if you could recomment what jailbreak to use redsn0w or blackra1n i would greatly appreciate that. i'm pretty tech savy, but the whole jailbreak process is still somewhat new to me.