There's the original freeware game. http://nifflas.ni2.se/?page=Knytt+Stories and a DS port/remake(?) http://www.rodrigoroman.com/rrc2soft/nds_dsknytt.html And it has a pretty huge following- as evidenced by the number of levels made for it, here http://knyttlevels.com/ It would no doubt be a successful homebrew app, the game has a pretty massive following. I think it would be pretty cool to see a port of it to the Wii- I think i remember someone else asking for this elsewhere-- but i don't remember The DS version is open source from what i can tell. Maybe someone could port that? It doesn't seem like it would be too hard to implement a download code to get level bins from knyttlevels.com either. idk. just a suggestion.