I don't know if anyone else has played this but I think it is pretty cool. I'm not a big fan of arcade style games like HALO or UT but the Unreal engine produces some good games.
Planet storm has a lot of potential. Again, I'm not a fan of arcade like FPS so I'm not thrilled with the infantry combat or the flight controls but I do really like the player controlled cap ships and fighters and the fact that you can board enemy ships. Worth checking out. http://udk.com/showcase-planetstorm