Robert_Charlton - 5:20 pm on Oct 13, 2012 (gmt 0)
Just to note that from what I'm seeing, the algo is doing precisely what was intended. Eg, a personal blog of a blogger who had the same name as a famous person but whose owner had beaten the famous person to the EMD, now only ranks for [famousperson.tld]... but not for [famous person], and not even for [famousperson].
It appears, from the quick look I had time to take before leaving for PubCon, that the blog had no independent inbound links to justify Google ranking it well. I don't think that Google has demoted the domain... simply removed the advantage the EMD gave it. In this case, absent good inbounds, that seems to be a demotion.
That doesn't mean you shouldn't get an exact match domain for your name. It does mean that you're going to have to be known elsewhere enough to motivate inbound links that justify the ranking.
It may be that Google is applying this more strongly to EMDs targeting "named entities" and personalities than it is to other terms... not sure of that. Clients I have with EMDs have, if anything, risen slightly during this update.