Yes, I would like upgrade my NES with this Universal PPU. Increase sprite, and support all palette, version or region NES system based. Like this you can run arcade version about NES Game.
I hope he will finish/complet his Hidef NES project. With this universal PPU all old NES run for eternity with optimal condition. I play with Mari bros 3 since hi def installation and so nicer and no laggy vs emulator....