When GarageGames first began developing Torque X for XNA, as a proof of concept both for the engine and the performance of the XNA platform, we ported our game Marble Blast Ultra. Marble Blast Ultra was originally developed using our C++ Torque engine and deployed in native code on Xbox Live Arcade. It's currently one of the top selling games on XBLA and in the "Arcade Hits" channel. You can find out more about GarageGames technology at GarageGames.com or check out more of our games and play them right in the browser at InstantAction.com