Today only, November 18, 2011, Autodesk Inc has SketchBook Mobile in the Amazon AppApp Store for FREE (regularly 1.99) for a limited time.

Budding artists, casual doodlers, and seasoned sketchers alike will enjoy SketchBook Mobile for their Android device. SketchBook Mobile, from the makers of the popular SketchBook desktop software, provides a full-featured drawing application and image studio that lets you follow your artistic bliss wherever you go with your device.