Robert Scriva created Dashalytics, a Google Analytics Mac dashboard widget. It is pretty sweet...

It shows you time frames from one day, one week, one month, 3 month, 6 month and one year. You get visitor traffic overviews, details on visitors, pageviews, bounce rates, averages, time on site, new visit percentages, browser types, connection speeds, top pages, referring sources in percentages and actual sources, top keywords and much more.

Here is one screen capture of stats from this site:
Dashalytics

Here is the Apple Site download page.

Spotted first at Googlified.