Free version of the popular notification system.
Growl Fork is a notification system that can display information from a variety of apps. For example, you can be notified that you have new email, or that a download completed.
bitbucket.org/pmetzger/growl is an unofficial patched version of the Growl 1.2.x sources taken from the last available public source tree. It is maintained by Perry Metzger.
The branch builds cleanly under XCode 4.1. As provided, it constructs binaries that run only under Mac OS X 10.7 "Lion", though people running Snow Leopard are probably better off using the official 1.2.x binaries anyway.