I switched my main machine from Fedora and Gnome to Mac OSX and missed having the Zapplet. I wrote a little script to scrape a Zenoss Event View and pipe to growlnotify.

The source is on github here

http://github.com/migrantgeek/zenoss-growl-notify

It was written quickly so may need some massaging to work on your system. If you have trouble, email me seth AT migrantgeek DOT com.

SHA1 sum for zenoss-growl-notify.tgz

d08e9870fecd69f2d18ae380bdedf066f6ac2649

- Seth