From the Instapainting Blog:

Over the past three weeks I’ve been working on a robotic painter to research the area of mechanical artwork reproduction and automated picture to painting creation for Instapainting.com and the print store e-commerce platform A Manufactory.

The initial prototype was built in about 3 weeks, and currently does mechnical reproductions. The AI painting mode which will paint a photograph will follow in the next post (putting some finishing touches on it)...

...The current prototype operates on 3 dimensions: X, Y, and a Z axis for pen pressure from the Wacom tablet. The artist can control the motion from a Wacom tablet and, for the most part, it’s lag-free. Every stroke is recorded so that it can be played back. You can see both the intitial painting and the playback in the video below... (full post)