I know a fair number of people are waiting on an update of the UI. Fact is, there are few addons I'm missing at the moment in order to update, and there have been good changes to a lot of them. I'm only waiting at the moment on an update from the Auctioneer folks that will contain the WoWhead info pertaining to vendor prices and such. For the moment, I have another addon that provides this, and if Auctioneer isn't updated by the time the new patch (3.0.7, on the PTR as of today) is out, I'll include the current stable version of Auctioneer along with this other addon, SellFish.
I have not forgotten about you guys, nor will I. :)