[Slimsride]

There is one way of "copyrighting" and idea that is pretty cheap, and valid in a court if needed. As a musician, we used to do this. We used to record our songs that we had written on a pretty crappy boom box, then take the tape, the lyrics and every associated with the song, put it in an envelope and mail it to ourselves and we wouldn't open it. The Stamp on the envelope (not the one you lick, but rather the one the post office stamps OVER the stamp you put on) serves as the DATE you had come up with the song, idea, etc. If it came down to going to court because someone had wrote a song that sounded like ours, we could go to court and because the envelope hadn't been opened and the date was stamped on the unopened envelope, the court would rule in our favor.

You could probably use this idea for now.