Sketchbook Pro works with both touch and pen-based input.

See note below re: GPUs that do not support Sketchbook Pro's full functionality.

Large images with high layer counts require greater memory capacity.

I've sent a bug report to Autodesk, but I haven't seen the issue reported elsewhere. Microsoft published a graphics driver update that fixes hardware acceleration for other apps, but now Sketchbook for Windows Tablet won't start on my device. ONE IMPORTANT CAVEAT: With Windows 10 preview running on the Surface Pro 3, the app runs very poorly because of a bug in build 9926 that crippled hardware acceleration. If you use Sketchbook, this update is a no-brainer and you may find yourself needing to use the desktop program less often. The app features a very minimal interface that is easy to hide, leaving a full screen blank canvas. Playing with the app briefly on the Surface Pro 3 and my desktop pc with a Monoprice 22' Smarttouch pen display, the experience is very nice.

Pro membership also unlocks complete access to SketchBook on Windows desktop, Mac, Android, and iOS, including all upgrades as long as your membership is active.

Pro membership: Other workflow improvements, including new ruler guides, flood fill, and much more.

Pro membership: Full layer controls, including rich layer blending modes makes image manipulation easier than ever.

Pro membership: Choose from a comprehensive brush library with pencils, pens, markers, and brushes, including new Synthetic and Smudge brushes.

Choose from over 10 preset brushes, including pencils, pens, and markers that deliver a natural drawing experience.

Control the finest details of your art with up to a 2500% zoom.

Open and Save layered PSD and TIFF files for easy interoperability with other applications, including SketchBook for desktop.

The entire screen is your canvas with a full screen workspace and unobtrusive user interface.

Designed specifically for both pen and touch input on Windows tablets.Here's the product description from Windows Store:

Autodesk sketchbook download for pc