Windows/Mac/Linux (with Adobe AIR): Polaris is a free Adobe AIR application that brings Google Analytics (Google's statistics tracking tool for web publishers) to your desktop with an attractive look and feel.
If you don't have your own web site, this application (and Google Analytics in general) is useless to you. If you do have a web site, chances are you're a little bit of a Google Analytics junkie. Rather than keeping a tab or window open dedicated to Analytics, Polaris Desktop Reporting pulls Analytics out of your browser and puts it into an attractive widget-style look at your web site's visitor and traffic status. The application is fast, integrates many of the reports you likely look at regularly, and overall works like a charm.
Polaris is a free download for Windows, Mac, and Linux, requires Adobe AIR. If you're planning to use the app for more than one web site, Polaris costs $US15/year.