Left 4 Dead running on Vita via PlayStation Mobile remote play homebrew app
Including motion input.
An user managed to run Left 4 Dead with motion controls on the PS Vita, via remote desktop play and PlayStation Mobile (previously Suite)
An user nicknamed 'digitalarts001' managed to run Valve's zombie shooter Left 4 Dead on the PS Vita, complete with motion input to move the camera.
Apparently, he build an app for Vita, using PlayStation Mobile (previously known as PS Suite), that connects to a remote version of Windows and plays Left 4 Dead on Steam over a local network with "little lag".
Pretty neat, right? However, he didn't mention if he plans to -somehow- release the application. And, no one knows if Sony would allow it on the upcoming store once PS Mobile exits BETA.