Now after the update. I did expect to lose position, but it seems my site isn't listed under Link Partners at all now. I can't find it anywhere.
I think maybe hyphenated domains also got hit with more aggression or they just more or less deindexed my site under that keyword.
I'm not sure how exactly this update works, but if someone can reverse engineer it and lay it out I might understand it a bit.
I been doing a lot of searching on relatively used keywords in the market. Alot of major players are falling off the front page who have quality links. I noticed sites such as forbes who has tons of indexed pages making there way on several major IM based keywords. As Google Cache updates sites more and more you will note that everything is coming down like an avalanch.