Paul Kedrosky jumps in the "Enterprise 2.0" fray with this presentation.
Jonathan Opp of Red Hat magazine runs a wide ranging interview with me where I define Enterprise 2.0 much broader as I have done before on my blog. (Thanks, Jonathan!)
Ramana Rao, probably the smartest Enterprise Irregular - (and if you read Jeff Nolan, Charlie Wood, Jason Wood, you know this group could look down on Mensa) - writes a nice piece on the technical barriers to Office 2.0.