I bet any writer would have just loved to have an efficient word processor instead of the old typewriters. With the option to edit, copy and delete any word, line or paragraph at a stroke of a button, freedom is enabled while saving enormous time. This option is offered with different drawing tablets, and Wacom provides two nice platforms.
The Cintiq is a digital tablet that grants the ability to sketch as you would with a regular pen and paper. Its interactivity allows you to draw straight on it with immediate editing and coloring, making it perfect for drafting, drawing and even comic book artists.
The Cintiq 21UX has a large 21.3 inch screen and a flat drawing surface for all your needs. The 12WX (which will be out in November) is like the little brother of the 21UX with a 12.1 inch screen, making it easy to even place on your knees for daily needs and brainstorming sketches.
Both of these digital displays have express keys to reduce your need of the keyboard, and a touch strip to scroll and zoom within your documents. The two displays are cord-free and so is the pen.
You can find a comparison of the two here and also short demos.
The video below shows the coloring of a comic book draft being done on the Cintiq 21UX. You can see other cool Cintiq videos here on YouTube.