[celebdor]

As an engineer working in the SIM card industry, as long as they add some other form of secure element for placing highly sensitive data like bank/id applets it would still be reasonable.

As others have commented though, I'm afraid that they would use it to lock the consumer to phone specific plans.

I like a lot the ability to take my SIM card to other phones, as it allows to carry some kind of ID with me, there are better and seamless ways of doing that that I can't wait to be implemented and deployed (a user and password to put when booting the phone is not a solution).