Seems to work fine now...

Seems to be working well for me under Mountain Lion. You can have Growl send its own notices as always, or you can have those routed through the Mac OS notification system. Does what its supposed to do on my Apps and doesnt interfere with the stock Mac OS messages.

The only reason I gave it four stars is because of the hassles I had to go through to uninstall the old version. Theres an official "uninstaller" on their website that you need to use to uninstall the old version FIRST before you install this new version. Whatever... You really shouldnt have to do that… Otherwise it seems fine now so Im giving it four stars. If it were easier to install I would have given it five stars.

bareyb about Growl