It appears that all currently available unofficial unlock methods for the iPhone do not work with iPhone software/firmware 1.1.3; this includes hardware-based methods like "TurboSIM" and others. Any iPhones updated to version 1.1.3 cannot be downgraded to any prior iteration of the software/firmware. As such, any users with unofficially unlocked iPhones will find their phones irrevocably (at present) unable to work on non-sanctioned carriers after applying 1.1.3.
As previously noted, iPhone software 1.1.3 also makes it impossible to use unofficial third-party applications.
To reiterate: because you can't effectively downgrade from iPhone firmware/software 1.1.3, applying the update means no access to any unlock methods or unofficial third-party applications until (if) a new solution is discovered.