The Asus EeePad was the best thing I ever used as a notebook replacement. I had to buy it from China and change the display text to English when I got it, but the screen felt like paper, the digitizer was Wacom, and the battery life was excellent. It would sync with Evernote (I wish it synced with OneNote). I could read and annotate ebooks and PDFs. There were two styluses, and a place to store them both. You could write normally, since the screen did not respond to touch (only the pen). The black and white screen was okay for notes, but if you hooked it to your PC, it became a full Wacom tablet for Photoshop etc.
Unfortunately, they never released it in the US, dropped Evernote support a while back, and have completely discontinued it. Did I mention that importing from China through a reseller and with shipping included it only cost $250?