I was tacking on notes until the very end of my editing. There is a lot going on within Google regarding Cupcake, and plenty of modding to accompany it. Things are moving very fast at this point. So although there's no way I could cover all of the changes in one video, I'm going to wait a bit before I follow up - probably around a week. Things should level off a bit by then.
Some of the features I didn't mention are interface improvements: nicer buttons, slick animations, and other surface enhancements. I'm told the most recent builds offer great performance increases - including better battery life.