A web-based iTunes remote, specifically for use with iPhone. The server component is written in Ruby.

It's currently functional, but not quite ready for release. The graphics used are upscaled from whatever I could scrounge off the 'net, and it currently requires the rbosa and json Ruby libraries to be installed. If you're willing to give it a go, check it out of SVN, start up the server, and go to http://your-ip:1984/ in a web browser.