Warning: Any get-things-done lifestyle changes you have made up to this point may be nullified by this app.

A couple of Facebook developers, one working for Facebook, have developed a native Mac menubar app that shows you all of your Facebook notifications. Think of it as gmail notifier, except instead of getting, yknow, useful messages, you will get a Growl notification every time someone invites you to grow hydroponic wheatgrass in FarmVille.

This is along the lines of the Facebook for Adobe Air application, released a while back, that allows you to keep track of your newsfeed, but instead of being built in Adobe Air, which can be glitchy, this new app is developed in Cocoa. Furthermore, you can’t actually do anything with the dropdown menu; it merely provides links to the browser Facebook site.

The important part about this is that Facebook is opening up their APIs so that third-party applications can do more. Obviously, they realized that one of the major draws of Twitter is that you can quickly update your status from a number of desktop, mobile, and web apps, and it looks like they are hoping to win over some users with the same functionality.

If you fancy being even more distracted, give the Facebook Desktop Notifications App a whirl here.