http://www.sonuus.com/products_g2m.html
Dan Lawson of The Dan Lawson Band stopped by to see the G2M at the Winter NAMM '09 show. He was very impressed that he can now play saxophone on his guitar.
The sonuus G2M is a simple-to-use, highly effective, guitar-to-MIDI converter. It is "Universal" because it doesn't need a special pick-up mounted on your guitar, but instead simply connects to your guitar like any other effects pedal or tuner.