Timeshift, one of the most anticipated Xbox 360 games of 2007 now has a new HD trailer on Xbox Live Marketplace. The trailer is available in all regions. Thanks to the Major for the info.

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Trailer: Timeshift
Name: Timeshift Trailer (720p/480)
Price: Free
Availability: Available in all Xbox Live regions
Dash Details: Ever since the quantum time jump and betrayal of Krone occurred, life as it was known ceased to exist. What was once a pristine and thriving city, Alpha District is now an alternate reality wrought with chaos and destruction. Join the rebel forces in the highly anticipated first person shooter that features your ability to master time to become the ultimate weapon.