CrunchBang 8.04.01

CrunchBang Linux is an Ubuntu based distribution featuring the lightweight Openbox window manager and GTK+ applications. The distribution has been built and customised from a minimal Ubuntu install. The distribution has been designed to offer a good balance of speed and functionality. CrunchBang Linux is currently available as a LiveCD; however, best performance is achieved by installing CrunchBang Linux to your hard disk.
More screenshots here.
I first read about CrunchBang on Stas Sushkov’s blog.