A crowded market
This is a bit of a late play, Facebook type capabilities have been around for awhile now. Quite a few social networking products out there besides yammer. Business collaboration products have been around even longer, incorporated with portal and documentation products. It will be interesting to see what Facebook think they can do that hasn't already been done.
It is always possible they think that because we are Facebook everyone will want us. They will need a very pursuasive market message to get any interest.
Biting the hand that feeds IT
