Gelide is a configurable frontend which let you manage any kind of emulated system (arcade, console, PC, etc) letting you to catalog and launch any game from any existing emulator under GNU/Linux.
DIET-PC (DIskless Embedded Technology Personal Computer) is a software kitset enabling IT professionals to build an open source GUI appliance based on commodity x86 (PC), PowerPC (Mac) or ARM (handheld) hardware, using an embedded Linux methodology.