It is possible, I made the mistake of not specifying initially and then went back and changed it to PC. I preordered AC:Revelations at the same time so they made my Skyrim preorder for 360.
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RayDyn's baby:
http://img515.imageshack.us/img515/4689/img0261r.jpg http://img.imgcake.com/ubabalayheeeejpgzy.jpg