I wanted to post a video that one of my coworkers, Olya, did to help new users understand OneNote:
It is super quick and useful and also you might notice that music in the background is done by another OneNote team member, Mike.
I've loved OneNote since 2003 came packaged with my first "laptop" (actually, a 10lb beast nicknamed "Lapzilla"), and I especially love the new sync-to-web feature of 2010. Would there be any hope that Microsoft may package your awesome Sort Pages and Sort Sections into an Update for 2010? I'm missing them.