UPDATE: Please see my recent post on a solution for Printing to OneNote on 64 bit OSes.
We've been getting quite a few questions and concerns about the "Print to OneNote" print driver that comes with OneNote 2007 not being supported on 64 bit OSes. I just wrote the following in response to a blog post and some comments about it on the GottaBeMobile site. I'm posting it here too for reference. It explains some of the context behind where we're at on this, and why. We fully understand how important the print to OneNote feature is, and we apologize that the print driver for this that shipped with OneNote 2007 doesn't work on 64 bit OSes. We plan to address this in the next version of OneNote.