Just a note to let y'all know that I'm up and running on OS X 10.8 Mountain Lion. WeatherCat, Boinc (quake watchers network app), EvoCam, and all of Edouard's scripts are running just fine under the new OS. You will need to expose your user Library again, but that's all I've found so far. Old Growl (the free one) still works fine under Mountain Lion, as well.
Steve