Firstly, great job on Enterprise Café. This is really useful and exciting.
I do like being able to share notes with everyone. Does this share it with everyone who uses Enterprise Café? If so, I would like to propose there be options to also share within the product "set" i.e. only Acrobat, and to choose specific individuals by the email address/ID they use to login.
The notes are shareable with your community, meaning that if you share a note in Acrobat, it won't be seen in ColdFusion. Making the notes viewable by individuals is a much more complex issue that we will put in as a feature request for the next revision.
Also in this matter, I would like to see more share options (referencing RSS Feeds share options). As well as Twitter, maybe a BuzzIt (Google's Buzz). Is there some "feature request" form for Adobe EnterpriseCafe?