I haven't had time to do much with the Enterprise RSS Day of Action so far this week, however I did notice Mike Gotta commenting:
"With only three enterprise-class vendors in this space (Attensa, KnowNow and NewsGator), I remain amazed at how poorly large vendors (e.g., IBM, Microsoft, Oracle) understand feed syndication and continue to treat it as an application decision. Stunning."
"We (the SharePoint team) understand feed syndication just fine... As for feed aggregation, management, and sharing, we were hoping that the Exchange team would build that, but they had other priorities. NewsGator has been and will continue to be an excellent partner for us in this area."