The new contender for everyone’s favourite tweak tool has been approved for inclusion in the official Raring repositories. So get out there and download it folks!
Just a Few Notes
Speaking as one of the development team members, inclusion in 13.04 is just a first step. We at Freyja are working to have Unity Tweak Tool included in Quantal as a backport, but as of now it is only available via PPA.
sudo add-apt-repository ppa:freyja-dev/unity-tweak-tool-daily sudo apt-get update && sudo apt-get install unity-tweak-tool
Also, regarding 12.04 support: for various reasons (and the fact that this is a relatively new project) development focus has been on Quantal and beyond. The possibility of future Precise support is there, but there is significant work in doing so.