A pure-ruby growl notifier.  ruby-growl allows you to perform Growl
notification via UDP from machines without growl installed (for
example, non-OSX machines).

What's Growl?  Growl is a really cool "global notification system
for Mac OS X".  See http://growl.info/

See also the Ruby Growl bindings in Growl's subversion repository:
http://growl.info/documentation/growl-source-install.php

ruby-growl also contains a command-line notification tool named
'growl'.  Where possible, it isoption-compatible with growlnotify.
(Use --priority instead of -p.)

WWW:    http://rubyforge.org/projects/ruby-growl/