iphone unlocking software

I am looking for someone who can create software (or some kind of patch) to unlock the iphone (all versions up to the latest firmware release, v2.2), so that the user can run the phone on other networks. The app would need to run on windows and mac computers and I will need technical support once the project is actually live. Please demonstrate that you know how to unlock the iphone, along with your turnaround time, costs, and whether you are interested in a flat-fee or some kind of long-term profit sharing we can then discuss further details in the pmb