Just the one XBLA release this week, Snoopy Flying Ace for 800 points.
Snoopy Flying Ace
Take your Avatar to new heights with Snoopy and the rest of the Peanuts gang, for the aerial duel of the century! Master the single player and co-op challenges between root beers at the Officers Club, then try your skills online in 9 different solo and team games. With simple flight controls and a hangar full of customizable planes and weapons, all you need are nerves of steel to climb the Leaderboards and become a Flying Ace.
Snoopy Flying Ace costs 800 
and you can find more information on the Marketplace.
