Something that hasn't been much commented on in the MS RSS announcements - just how much MS' entry is going to affect the (RSS) tools space. The addition of RSS reading to IE is going to expand the space tremendously, of course - but botice the Outlook RSS capability Scoble mentions? That's going to impact the NewsGator folks quite a bit. Sure, they still have the server side - but I suspect that, over time, their client will end up being a value-added version of whatever MS does. Either way, this entry is going to start consolidating the field of aggregators.