I read an article
on hackaday.com about this little circuit board.
It was primarily designed to add a MIDI port to a gameboy advance or DS, but can be interfaced to basically anything.
If you read the post @ hackaday you can see that some guy used it in his microwave.
Personally, I wonder how useful this is in acutally adding midi functionality to homebrew platforms.
You can find the board here
Now I think this is a cool gadget, but I don't really have a cool idea as to where I'd put it, do you guys have suggestions?