What’s Next For The Road Warrior’s Toolkit?

Today, Apple announced they would be offering unlocked iPhone 4S models in the U.S.

Apple’s new offering is currently limited to GSM. But my idea of road warrior nirvana would be stepping off an airplane anywhere in the world, walking up to a vending machine, sticking in my credit card… out pops a local micro-SIM card and I have local cellular service by the time I reach the door.