UPDATE: The creators of PiBang Linux have updated their download. However, they did not notify me in order to change my download. I don’t have time to keep on checking, so please don’t look here for more updates.
Saw a reference to this via ScoopIt and tracked it down myself.
This is a Linux distro inspired by Crunchbang Linux and based on Raspbian. There are a list of differences here. Key features seem to be removal of a lot of extraneous software (like Scratch) and use of the Openbox desktop environment, rather than LXDE. Apparently, Openbox is faster.
Release candidate 4 is now available to download.
PiBang Linux homepage is here.