vorpX is a stereoscopic 3d-driver that allows you to play existing games on the Rift. It is specifically geared towards the Rift and offers various features to tackle inherent issues that arise when you play games on the Rift that are not designed for the device. May sound like an empty phrase, but vorpX truly is software for gamers by gamers.
vorpX started as a small sparetime project last September primarily for my own use, and so far is developed with a DIY-prototype similar to the official Oculus prototypes. After having invested hundreds of hours into it, I eventually decided to make it a commercial project though. Giving it away for free somehow didn't feel right anymore beyond a certain amount of invested time...
While the project is still in development, vorpX will be available shortly after my devkit arrives. More detailed information can be found at www.vorpx.com