I'm not sure I want to try buying yet another PDA type device. I have my Treo and it works for that.
So I'd probably not buy a new Newton. I'll tell you what I would buy, and I think apple is the company to produce it right.
An Apple Tablet. Not something small but something with like a 12" screen, or maybe something more like a sheet of paper sized thing.
A slate, not a convertible. I want something with a high res screen, designed more for artists than business. (Although a OneNote like application would be nice too)
If it had multi-touch on the screen that would be nice, but really all I want is a decent pen. (preferably a wacom)
I don't know if they are going to make such a thing, but it is the thing that I would like. I keep looking at TabletPCs, and refuse to spend the money on one because I know they could be so much better.
Ah well I can dream.