I’ve asked the OneNote 2007 team about why the Ribbon is not implemented for OneNote 2007, which I would find very useful, and they answered me that they considered it but it will not get into the 2007 release but they will think about it for the next release (OneNote 2011?).
Please help me out here and post a comment if you would like to see the Ribbon in OneNote or not and if you do how would you like it?
I would like to have it adjust to what kind of notes you are taking; is it a meeting, regular notes, or a class you are taking. And of course the Ribbon would adjust to what kind of tools you are using; drawing, text, audio or video.