Digit devised an interactive installation, MotoGlyph for the Miami's M3 Festival (sponsored by Motorola.)

Guests could write on panels (each have their own sound effect) with a 'virtual spray can' and the movements were tracked via ultrasound, then projected onto glass panels, creating a virtual graffiti wall and the sensation of writing in 'light'.

Users created thus their own digital signature or illustration upon the wall from which the variables of the marks and strokes were translated into the author's own sound and animation.

Participants could then go to the MotoGlyph website to download an MP3 of their unique ringtone to their mobile phone.

Motorola plan to tour the project throughout the States over 2004, specific locations tbc.
The website has lots of pics and videos.

Via del.icio.us/tag/technology.