I have just pushed some early code for the GTK2 GUI to Git.
To launch the GUI, run: phoronix-test-suite gui. The PHP GTK module (http://gtk.php.net/) module is required for support. Unfortunately, not many distributions have packaged PHP GTK, yet.
There's still a lot to be hooked in, but you can start looking at basic information, system information, and other items through the interface.