Tim will be glad to know I agree. ;) Seriously, though, it's important to understand that there is a reason why we all started our web/sharing work with documents and words: they are easier. They have intrinsic meaning. The fact that we can disagree about what "bonnet" (head covering vs. auto cowling vs. whatever) is a simple proof of intrinsic meaning. Numbers are different. Can we disagree about "7"? Not really; it has no intrinsic meaning -- other than, the rather useless "the integer between 6 and 8". No, numbers take their meaning SOLELY from context, and context is hard to communicate. Very, very hard.
So, context sharing is the killer app for enabling the next stage of information webs, those which will revolve around numbers. And, this I think is a very big idea. Given that businesses are usually "run by the numbers" to a large degree, I believe that the only way Enterprise 2 will make significant inroads is by solving this "numeric context sharing" problem. When they have the ability to exploit social tech on hard numbers, businesses will want to (and have to) embrace Enterprise 2.
And, that's why I'm so excited about what we're doing at Lyzasoft to allow data analysts to share data bound with implicit context metadata --such that their peers can understand, assess, remix, mashup, and apply that data with all kinds of other data to solve emergent problems.
Thanks, Tim, for stretching our imagination. Again.