On Youtube: a 7-minute time-lapse video showcases David Jon Kassan painting realistic portraits on his iPad, through the Brushes iOS app.
Kassan propped up his iPad on a canvas stand and, poking and sliding his fingers across Apple's tablet, created a digitized facsimile of his aged model. The whole process took three hours total, and a live stream was available on Kassan's website for an appreciative audience.
Like the etch-a-sketch and 1-bit painting, Kassan's proficiency with the iPad shows that it only takes time and some expertise to turn any platform into a creative tool. Yet as DVICE points out, iPad owners wouldn't have to spend hours creating art if the tablet came with its own camera.