We just uploaded a new beta version 3.1 beta 0201.
It deals with some of the more stubborn problems on web hosts that have odd PHP settings. The problems were just annoyances (flashing text between certain pages). Hopefully they are now gone with this beta version.
This beta version introduces a new bug though. It can't be installed on a brand new site. So be sure to install the released 3.0 before installing this beta... or only update an existing site. Otherwise you get stuck on the "Setting up new site" page and there is no way out except to install version 3.0 and then install this beta version.
We are probably finished with feature additions with version 3.1. We'll stamp out the remaining bugs (like not being able to install from scratch) and release version 3.1.
Leave a comment here if there is a feature you would like to see in version 3.2.