HTML 5 Notifications in Mountain Lion

I don't understand how the anonymous blog author identified that this is feature new in "Mountain Lion" specifically, as this is a window.webkitNotifications is a javascript API introduced and adopted only by WebKit.

In other words, my copy of Chrome 20 running in Snow Leopard runs this site example fine.

I think he/she meant it's new in Mountain Lion's Safari.

Chrome and Safari push these notifications through the native Mac OS X Notification Center. Chrome on Snow Leopard has its own (rather ugly, IMO) implementation.

Blog spam. Here is the direct link to the demo on github: http://dangercove.github.com/html5-notifications/

I can't believe this has gotten any upvotes for what qualifies as blogspam.