I jumped right on the first leak 4.5.573 not rooted when it was released, so now I'm interested in rooting again. I went thru Roolers Gingerbreak section, and it talks about it may format your sd card or to use a formated card to start with. I don't have a extra card right now, the kids swipe them for their dumb phones. So is this a must do? I really only want to root to get to the latest leak. Thanks for any help.