I am repurposing an old desktop as a media center PC using Ubuntu(for the time being)but I am also interested in adding some capabilities more typically attributed to a game console to the machine. Like games. To that end, I am looking for a Linux user interface that is easily navigable using a game controller type input device, or a way of modifying an existing user interface to be controlled with a game controller.
Unfortunately, MythTV and XBMC are not adequate because they cannot launch other applications(such as Egoboo or SuperTuxCart). The most essential thing is to be able to browse the installed applications with a joystick and to be able to launch applications from this interface. Does anyone know how I would begin to do this?