Okay, but it kind of seems like it might just be worth the risk or hassle for, say, a C.H.I.P. board, since aside from being very cheap it has composite AND vga capability. It's also boasted as being open hardware ... maybe that means the possibility of doing S-Video, I don't know. But it seems really on the right track!
But I understand about the board support factor for various boards being lousy, unlike the old Beagleboard standard, which happen to just not be basic enough at all.