This script has been moved to github and is now maintained by bill-auger in order to have a proper issue tracker - all further development and communications will take place there. Thank you for your stars and comments here!
https://github.com/bill-auger/git-branch-status/
this script is also now icluded in jwiegley's git-scripts collection but please direct comments, bug reports, and feature requests to the upstream issue tracker
If anyone is interested, I've fixed kd35a's version of the script + added colors:
https://gist.github.com/knovoselic/1a20dc28dbb0141fc176