I plan to have an updated version of the UI ready for when Blizzard releases the 3.0.8 patch. Auctioneer still hasn't updated their addon, but I found a hack for including the database from the development version in the release version, which provides vendor prices for all of the Northrend items.
Not a whole lot of changes to the UI will be included, since most of the AddOns still seem to work fine. I've been playing with a couple of other addons, like ArkInventory, but I don't think I'm actually going to be adding them in.. I'm having a memory issue with WoW that causes a crash if I'm in a zone with too much information, it seems to have something to do with the amount of memory allocated by the WoW client, which includes AddOns. So I'm trying to keep things a bit minimalistic, although when you have a UI as complicated as this one, it's not an easy task.
Sorry again for the delay in an updated version, there just aren't enough changes to justify getting it out and having to reissue for the new patch.