Pion Lite by Atomic Labs, collects your traffic data and populates your Google Analytics reports -- without using Google Analytics page tags. Pion Lite passively "listens" to all of the network traffic between web servers and visitors. This approach reduces the overhead traditionally required to capture visitor data with page tags, and also provides complete data about site visitors including those using mobile devices and RSS readers. Pion collects analytics information within a website's data center and removes all personally identifiable information (such as visitor cookies and IP addresses) before sending the data to Google Analytics. This new, privacy-friendly approach to web analytics data capture gives marketers the information they need without the risk of privacy violations. Pion 3.0 includes a new setup wizard that makes it easy for new users to get up and running with Google Analytics by just answering a few questions.
More info: Pion Lite