At Sony's E3 2007 conference earlier today, the company announced that Unreal Tournament 3 will be available exclusively on PS3 this year.
The first person shooter, built on Unreal Engine 3.0, was slated for release on Xbox 360 as well, but will initially appear on PS3 only.
A trailer for UT3 is available on PlayStation Store.
Sony also re-confirmed that Haze is exclusive to PS3 this holiday season. The title, published by Ubisoft, is expected to be released on Xbox 360 in 2008.