i've purchased an unlocked iPhone about 3 weeks ago. since then i've discovered the usually wonderful world of third party apps. i've installed / uninstalled a whole bunch of them but i feel the i've left stuff behind in the removal process. i'd like to start over fresh. is it possible? i've already jailbroken [but not unlocked] 2 iPhones using ziPhone. can i use that on my currently unlocked and jailbroken iPhone?