360 games not region locked?
In an interesting article it seems that some US games have been seen to be playing on a Japanese console. The titles without lock so far are know to be Call of Duty 2, Condemned: Criminal Origins, Gun and Tony Hawk: American Wasteland.
With a little luck all the titles EA are crippling (Like Madden 06) will not have region coding on them so at least it can be imported 
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