@fkinoshita very nice, I have gone down that route and found that something like Porporo is a more practical approach than potato(where every program share the same 64kb of ram).
I realize that you don't have a real use in mind, but I think allocating a uxn cpu for each program is going to make things more fun, you could build on that, where the menu you're building now could be its own program, floating above the desktop program, and the other applications.
@neauoire yes!! that could be really fun, going to explore going that direction.