I created XMLRPC.growlView plugin.
http://idisk.mac.com/mooya/Public/XMLRPC.growlView.zip
I am testing my site for now playing by iTunes!!
http://mooya.ath.cx/CubeDeZope I put this at right corner.
growliTunes -> growl -> XMLRPC.growlView -> Zope App server
growl is cool!
