[TeMPOraL]

Or a 2-in-1 device with a touchscreen and a pen (e.g. Surface).

The non-graphical tablets with pens are really a different type of interaction, and one that supersedes keyboard + mouse for light graphics. Using one hand with the pen for pointer input + another hand for touch input is really powerful. Moving around, zooming, or rotating things on the screen is easier done with a hand. And a wheel menu (context or otherwise) really starts to shine with a pen.

I wish more software actually supported this. I currently own such a device (a Dell), and I'm searching for software that can utilize touch+pen input to full extent, but there aren't many programs that can.