Has anyone ever heard of anything like this? A portable device that
has a little synthesizer and you wear it like a Walkman CD Player.
I'm thinking of an ear training application that you could carry with
you. Portable PC's come to mind, but I'd like to be able to build
something really inexpensive like this:
main menory for small OS and application code
ram for processing
all in a portable case you can put on your belt