Thanks in large part to the efforts of Shawn from the Uberteam, we have a demo site up and running at http://demo.ubercart.org that lets any user who creates an account access the store administration portions of the cart. We're using the Demonstration Site module to rollback the database every hour (at about 6 past the hour it seems), so any users that get created or changes that are made will be wiped at that time. Sorry if this inconveniences anyone, but it seemed like the best way to have a demo up and running without any sort of moderation.
The site will be good for a quick look at the administrative side of Ubercart. It's a copy of the Livetest, so there are some ready made products for folks to play around with. Let us know if you have any ideas for improvement.
On a side note, those interested will be happy to find a download link at the top of http://bazaar.ubercart.org that is a packaged up download of the development code as it's committed to the repository. It gets bundled up on the hour as well. You probably shouldn't slap this onto your live site unless you know what you're doing. Improvements in the latest code may render features your site relies on outdated or useless.
