UK-based visual artist Kyle Lambert put together a slideshow for Macworld that showcases the power of the iPad in the hands of professional. I couldn't create anything nearly as nice as this, but Lambert has been able to create a life-like portrait using only his fingers, the Brushes app for the iPad and an iPad as the canvas.
It doesn't look like much when he starts with his rough outline, but the finished product is amazing. We won't spoil the fun by spilling his secrets here. You will have to travel to Macworld and learn the tricks of the trade from the expert himself.