Could T-Mobile (U.S.) new global plan doom the global SIM card business?

[powerlifter]

I have been a T-Mobile subscriber for many years. MY problem with this is how do you get a client to call you if they have to make a long distance call if you are in the same country. I usually have a driver, and I would never let him call me long distance if I had gotten his vm. I personally will stick with local sim cards. I find it a lot easier to deal with.