Reinvigorate Snoop is a real-time tracking tool for your website which is running in the System Tray (Windows) / System Status Bar (Mac) you no longer need to endlessly flip between your work and stats. When something happens, Snoop will let you know. Snoop will run on any website or blogging platform that allows JavaScript. Simply insert the tracking snippet on any page you want tracked and we take care of the rest. You can assign different events with different sounds, e.g. new visitors, comments and donation,etc. You’ll know the instant someone makes a comment on your website, visits your website, make a donation, etc.
… More
Edit
unfortunately this is beta since more then a year now. wonder if it will be ever developed more.
the website analytic isn't as flexible as google analytics, but the unique tool to show you realtime traffic is nice
Hmm, I was running WPF Snoop; I don't think this is the same thing.
Related to: http://www.microsoft.com/presspass/press/2007/sep07/09-26ExtendersDigitalLifePR.mspx
It's still beta, the tagging and snoop alert is really useful.