SIM-unlocking the Openmoko phones?
I think it's quite funny that SIM-unlicking vendors like RebelSIM actually advertise that their products are compatible with Openmoko, as you can see in this PDF file.
What's funny about this? Well, Openmoko phones have never been sold with any form of SIM or Operator locking. The entire idea was to have a phone that is under the control of the user, not the operator...