Last night's 1.0.2 release had two fairly critical bugs. The first being that, due to some code shuffle in the tree, the web server configuration templates weren't bundled with Review Board, making initial installations fail. The second bug only manifested if you had Django 1.0.2 installed. We required some functionality that only existed in 1.0.3 and higher, but didn't specify this requirement for the package.
The new 1.0.3 release is now out, and fixes these two problems. We now require Django 1.1 or higher. This brings with it a number of stability and speed improvements behind the scenes. It also gives administrators a new ability to batch delete items in the database, which can be useful when cleaning up spam or test comments. In the future we'll add new batch edit functionality based on this.
Full release notes are available.
Update: The upgrade to Django 1.1 broke the styles for the administration UI. A 184.108.40.206 patch release is available which just fixes the styles in the administration UI.