I've gone totally paperless in my studio (for drawing) and in the above video I show why and how. Right now I'm working on an ebook app and I'm drawing it entirely with my finger on my iPad. I'm doing all the color work in Photoshop but all the drawings are being done on the iPad. It's not a fad or gimmick to be able to say I can do it, rather a natural evolution that has increased my workflow, productivity, and portablility. Check it out.