Looks like the Feedster guys lost some sleep this weekend - they've been having a look at the splog problem, and think they have an answer. The volume washing through Feedster results seems to be down, but it's hard for me to tell whether that's because:

• I've already received all the crap there is to get on the keywords I search for
• They've addressed the problem
• The attack has been stopped/slowed/paused

I'm still getting bogus results from PubSub, IceRocket, and BlogPulse though. In any event, I think Google is where the action needs to take place. They're the ones who have the targeted system.