According to an article recently published by The Escapist on their website, there are rumors of the Xbox 360 being banned in the United States.
This all started in April, when David Shaw, a U.S. international trade judge, ruled against Microsoft and recommended that an order of exclusion be filed against the 360, which would ban it from being imported to the United States. Activision and IBM are protesting on the side of Microsoft. Activision says that they have “expended and continue to expend significant resources to develop video games and accessories specially adapted to operate on Microsoft’s Xbox gaming console.”
But keep in mind that these are just rumors, there is no confirmation of a ban yet.