We've been using postgresql for several years, and have used a wide range of tools from EMS, Navicat, PG Lightning, pgadmin, etc, and would love to provide you with some feedback, unfortunately there doesn't seem to be an easy way to download and install this beta. Something like a tar.gz of the files would work fine, the ubuntu install won't work on our gentoo box, and the fedora link is down, and I try my best to avoid installing anything on my local machine. As soon as I can download something that's installable I'm sure we'll have some very valuable feedback for you.