I had a five hour offsite today to do a design session around the system we're building. I took notes using OneNote by handwriting on my Tablet PC.
And it was just great. I can write and draw diagrams as easily as doing it on paper, except that at the end of the day, I can convert all of my handwritten text to actual text, and then email the notes around for everyone else to see. It's really a qualitatively different experience working this way.
Wow.