We just learned of a neat new iPhone app from Autodesk called Sketchbook mobile.

The Autodesk® SketchBook® Mobile painting and drawing application extends your digital sketchpad to your Apple® iPhone® or Apple iPod touch®. With the same paint engine as Autodesk® SketchBook® Pro software, SketchBook Mobile offers professional-grade painting and drawing tools in a streamlined and intuitive user interface. Use it to digitally capture your ideas as napkin sketches or produce artwork on-the-go.

Some of the key features include

• Full Screen work space with UI-on-demand
• Canvas Size of 1024×682 on 3Gs iPhones
• Up to 6 layers on 3GS iPhone
• 10 levels of undo and redo
• 25 preset brushes
• color wheel and customizable color swatches
• Save-work-in-progress and export images

Sketchbook Mobile runs $2.99 through the Apple iTunes App store.  To learn more about the Autodesk Sketchbook Mobile app, visit Autodesk website at www.autodesk.com.