I decided to venture over to Hipbone Studio with my iPad2. I'd just downloaded Sketchbook Pro, and am still adapting to the tool. I look forward to the day I can draw and paint with less effort - changing brush size, opacity, color still feel cumbersome. It's a great app, but I do wish there were a fabulous pressure-sensitive stylus. This looks incredibly promising: Jaja.
Sketchbook's set of Bug brushes come in handy to keep the blog family-friendly.