DustTag is an iPhone application designed for graffiti writers that visualizes the motion involved in the creation of a tag. All tags created in DustTag are saved as Graffiti Markup Language (GML) files and can be uploaded to the 000000book.com website.
DustTag was created by artist and Graffiti Research Lab co-founder Evan Roth, and artist and openFrameworks guru Chris Sugrue.
More info. here. Via today and tomorrow.