"[Redsn0w] uses our original Pwnage bootrom exploit for iPhone 2G, iPhone 3G, and iPod 1G. (Because it's a bootrom exploit, it can't be fixed by Apple without a new hardware release.) Note that redsn0w 0.9 does use the USB exploit for iPhone 3GS and iPod 2G+3G running 3.1.2, but that exploit will be fixed in Apple's next FW release." http://wikee.iphwn.org/howto:rs9 So, the hack for old bootroms is untouchable by Apple, i.e. every new firmware update will be a doddle to hack, as has always been the case. What about new bootroms? USB exploit? Fixed in next FW release? Does this mean that new bootroms will be 'tethered' to 3.1.2 for the foreseeable future?