I called T-Mobile today and requested the unlock code. I'm just waiting for the email. I've been a loyal customer for several years who always pays his bill, so they had no problem giving it to me. The request just has to go to their tech department. I've been down this road before with my original R374 and it worked great. It just takes 24 to 48 hours to process, and then me making the time to get it done.
Edit: Son of a bi.... I got the email today. They won't give it to me right now because it hasn't been 90 days since my last request. I really don't want to disassemble a brand new perfectly good phone to attempt a test point. I've got 3 others I take apart and play with. I really want to keep this one intact, so it looks like the unlocked MP is going to have to wait. Sorry guys.