Due to popular demand, the developing team behind anySIM, the iPhone unlocker, has released the source code for the program. the iPhone Dev Team also invites developers to contribute patches to the software in "the proper way."

Here is the iPhone Dev Team's message that comes along with the source code:

You may know anySIM, the most popular and free unlock solution for Apple's iPhone. Because of the public request and to archive a constant code quality, we now opensourced it!

[...] Anybody is welcome to contribute patches to the software on the proper way. You will be able to submit potential changes to the tree via svn by then. We are looking forward to your contribution!

Follow the link below for the iPhone Dev Team's (now open sourced) anySim iPhone unlocker.