The option to print anywhere, onto anything, is an important factor which will provide the users with the ability to print digital content onto floors, walls and ceilings, both indoors and outdoors. Further substrates will include surfaces such as paper, brick, concrete, glass, and grass.
Neat. It's a paint roller married to something like a dot-matrix printer that allows you to easily put text or graphics on large surfaces. My dreams of becoming the best graffiti tagger in town are shining ever more brightly tonight.
Or maybe not. This video demonstrates it in action; it's kind of a noisy little bugger, sure to prick up the ears of the vicious railroad bulls.