Inspired by this illustration post. Was rather impressed by what Craig Markus did with Sketchbook Pro on his iPad. I'm still struggling with the app myself since I'm not used to sketching with my fingers. So for now, I will continue with using Illustrator as my tool of choice until I get better at finger painting. But I have to admit, the iPad is turning into a fun illustration tool even if it's only for capturing quick sketches and ideas for me.