I can understand the crackdown in the sense that they need to keep X-Box Live as level as they can. If you want to use XBL, you need to have an unmodded machine, works for me. However what irks me, is the X-Box game "Star Wars Battlefront" apperently tried to overwrite any usermods to the front end, regardless if the player uses XBL or not. That's not right.