Quick facts:
Apple closed the injection vector that YellowSn0w used.
Solution? New version enters called UltraSn0w.
Will unlock ANY iPhone 3g on 3.0 firmware regardless of baseband, bootloader, etc.
Same payload as YellowSn0w, injected into new hole in the baseband.
This new hole was found by an iPhone user named Orinav (no idea if i spelled that right) outside of the dev team.
Not releasing until iPhone 3.0 goes live so Apple doesn't have time to patch the hole.
Dev Team planning on releasing UltraSn0w on Friday. Could they be trying to unlock the iPhone 3G S before release too?