Apple has added a new layer of security for the iPhone 3GS and steps need to be taken to prevent these measures from affecting future jailbreaks.
Apple has added a new layer of security to the iPhone 3GS. I mentioned it several posts earlier; it's the ECID field. When iTunes starts the restore process, they contact Apple servers to generate signatures just for your device. It's important you get these signatures for your phone before a new version of the software comes out. I had previously suggested doing this by dumping usb while the iPhone restores. But this is complicated.
Thanks to GeoHot purplera1n.com will help you generate a unique certificate for your phones iBSS. You will need to keep this certificate for possible use in the future.
and maybe I'm reading into this a lil too far (usually do)
but I gather this key would remain valid as long as the device stays on the same version, or is it sounding like it would change once apple has something else to tie the number to... say, a pre-emptive cueing for the update or something.
(and i know... I made that pre-emptive thing up too.)
just curious.