Woopra real-time web analytics... REALLY cool!
The client is a real feast for the eyes...
When I hit my blog, about two seconds later the client updates with all the information you see above. I can imagine the page would look like fireworks went off if you had a high-traffic site like vowe.net or edbrill.com.
I'm looking forward to playing with this more in the next few days to see how it behaves. But so far, I'm very impressed.