
I'm also used to having charcoal under my fingernails. The iPhone doesn't leave a trace. You wouldn't even know I had been drawing.


http://www.bloomberg.com/news/2010-04-25/david-hockney-s-ipad-doodles-evoke-high-tech-stained-glass-martin-gayford.html

At the moment, I am insanely jealous.
Altho I will say, the lamps do kind of look like toothbrushes to me.
copyright David Hockney