Today Google announced real-time stats support for Google Analytics users. From the post:

Today we’re very excited to bring real time data to Google Analytics with the launch of Google Analytics Real-Time: a set of new reports that show what’s happening on your site as it happens.

The new feature works exclusively in the new interface, and has only been enabled for a subset of the user-base. If you would like to have it enabled on your account, please visit https://services.google.com/fb/forms/realtimeanalytics/

Google Analytics Realtime Example

Google