Before I crash for the night, I'd be remiss if I didn't congratulate my incredibly talented and passionate coworkers and thank our unbelievable community. Movable Type 4 is out the door. I think it's the best product launch I've ever been involved in during my career, and I can't wait to see the impressions of it six or twelve months down the road.
People who read this site probably know all about what a blogging platform does; You might be more interested in Why we made MT4 in the first place. (I should get bonus points for the old-school screenshot in that post.)