Recently I purchased a JaJa pressure-sensitive stylus from HEX3. This is a pen that lets you create natural looking brush strokes that vary in thickness and opacity on an iPad. There are quite a few sketching and painting apps available; I went with Procreate for it’s positive reviews and simple, elegant interface.
Now the idea is to adopt a purely digital workflow, from draft to finished artwork. So far the pen has worked well, and the software has afforded me all of the advantages of digital drawing (layers, copy & paste, etc.) that makes it so powerful. Multi-touch gestures let me zoom and rotate the art instantly, and I can export finished pieces to Dropbox or send them directly to the client for review. I can even sit on the couch to work if that new comfortable chair isn’t feeling quite so comfortable. And the art tools? Give ’em to the kids.