[antidoh]

"Many of my fellow teachers would be very comfortable with a tablet that could talk to a projector somehow and some good writing sketching software."

That's probably good for short and "casual" writing. But for long distance writing, most people can type much faster than they can write, and most people can type much more legibly than they can write.

Which is hugely ironic, given the bandwagon of reducing emphasis on handwriting skills in favor of keyboarding skills in schools. For devices without keyboards, we'll either be using glass keyboards with their tactile inaccuracy, or styluses with OCR software behind them that will have to contend with increasingly terrible handwriting.