It's kindof sad actually, I hadn't really heard too much about Cave Story until this year, I got into Doujin games (Touhou Project, Chantelise, etc.) and I had heard a little bit about Cave Story, so I decided to give it a go, and I absolutely love it.
Wii version: haven't played it yet, if I do get the chance to play it, I definitely will! I'll have to wait though, looks great though