Geohot has announced that an unlock dubbed BlackSn0w for the iPhone 05.11.07 baseband is coming soon.
This means that all iPhones will be unlockable; including those that have accidentally or intentionally upgraded to the latest firmware.
hello there* this is geohot
this is the most complicated injection i have ever done* and it uses a public command
... prepare for blacksn0w* although i gotta still figure out this zamboni
We will of course keep you up to date with further developments but things certainly look promising. Keep up the good work Geohot!