"However, if Apple is doing an end run around the carrier by putting its own SIM inside the iPhone it could do what Google with its NexusOne could not, which is create an easy way to sell a handset via the web without carrier involvement. Much like it helped cut operators out of the app store game, Apple could be taking them out of the device retail game. Yes, carriers will still have to allow the phone to operate on their networks, which appears to be why executives from various French carriers have been to Cupertino in recent weeks.
The Gemalto SIM, according to my sources, is embedded in a chip that has an upgradeable flash component and a ROM area. The ROM area contains data provided by Gemalto with everything related to IT and network security, except for the carrier related information. The flash component will receive the carrier related data via a local connection which could be the PC or a dedicated device, so it can be activated on the network. Gemalto will provide the back-end infrastructure that allows service and number provisioning on the carrier network."
also see: With Their Carrier-Crippling SIM, Can Apple Do What Google Chickened Out Of?
also see: An Apple Integrated SIM: What it Could Mean