So, I know I'm a new member but I only made this account to post this. You dont have to believe it, but I called Motorola Mobility tech support. I told them that I was a developer and I was interested in the atrix 4g but I had a few questions before I buy one from ATT. I asked them if it was boot loader locked. They put me on hold, 5 minutes later, the person said according to their system administrator, it is indeed locked. Sorry for those of you who were waiting for March 6th to find out and hoping it wasn't locked.