There's some serious iPhone hacking going on during the last week or so.
Here's the wiki page, that has lots of information on the project. Main devs, working on the unlock problem are from US and Hungary as it seems.
The forum is here. Deliverables here.
The progress is steady. There is a now a way to issue commands to the system, including moving of files, activation (which was achieved in three days) and directory listing inside the sandboxed filesystem.
I'm following the progress (with Hana - she's cheering along), because it's fun to know the internals of a locked down Apple device.