I still haven't gotten my UZ yet. I'm not sure if there is a volume problem getting enough out to the distributors, if the distributor has not been accepting them because of quality issues, or if my FLGS's distributor isn't on the ball.
I know it became available then back to not released at one point, then available, and was confirmed as shipping by e-mail but didn't go on the order invoice. Then finally it came in on the invoice and all, and when the box was opened Lankhmar came out (the part #'s are one apart). At which point we all had a good laugh and the following week still no Uz.
I'm not sure why this is (obviously the Lankhmar thing was a screw up on the distributors part). MGP releases usually came about 2 weeks after the release dates on the website until the new printing press came on line, since then MGP orders have been erratic at best. I'm not sure if supply or quality comes into this. Other publishers stuff has never been an issue (though I've ordered mostly Mongoose lately).