Wow...Larry sure threw Salesforce.com...which bases their whole company on Oracle under the bus! I wonder how Tom Kyte feels about the slams on Apex?
Oracle Social Network seems like an oxymoron...most techies I know aren't very social. This isn't Exafacebook, its a BI interface that looks very interesting and different. This session is a pretty hard slap at SAP. While showing the SAP UI, he said "It's like looking at the fins of an old Cadillac."
In contrast, the Oracle Social Network looks like a streamlined way for businesses to communicate by issue, rather than by group. The system recommends contacts for your project rather than the other way around.