In the comments for this post about multi-touch interfaces, an anonymous poster tells this story: "I got my hands on a [mono] touch screen and use it as a second monitor on my music PC. I wrote a drum grid editor thing (inspired by those little LED-button-covered boxes you reported on [the Monome?] that syncs with a midi device. Anyhow, it's very cool to use." Slightly bigger picture here. UPDATE: He says "It's totally free if anybody else has a touch screen and wants it (it'll work on a non-touch screen too, of course)." I'll post a link as soon as he sends one.