At the risk of whatever, I feel like there might be a "market" for something like the "OpenBox" version of this - or perhaps what I'm saying is even using something like Openbox to get the minimalist version of this thing. Seems to me a 10-foot interface almost by definition doesn't need the complexity of a KDE; you need to launch apps from "big rectangles on the screen" instead of like a Start Menu(and probably conf…
Maybe FLTK/FLWM can be interesting as well.