The current Klonoa on Wii is the first one, Door to Phantomile, right? It doesn't have anything from 2 in it?
So far there hasn't been a new, real Klonoa game (foregoing party games and RPGs) since Klonoa 2 on PS2 in 2001. Klonoa's one of those games like Psychonauts or GTA: Chinatown Wars -- all the critics and hardcore gamers love it, and no-one is freakin' buyin' it.
I'm curious about the PSN version as well, especially since I've got a PSP but no Wii (though when I get a Wii, this will be an immediate purchase).