Well, not quite. But V-Tracker, from Code4Software, certainly looks the closest thing we're likely to get to Google Analytics in Second Life for some time.
V-Tracker uses a combination of scripted objects in Second Life and a web-based back end to deliver a huge range of metrics and data which will be incredibly valuable to any commercial organisation trying to judge the effectiveness of a campaign in Second Life. As Code4Software describes it:
V-Tracker is a suite of tools used to capture visitor data while providing easy to use web-based analytics. It allows the analyst to create their own visit scanners, touch event sensors and public channel avatar attached chat loggers, and then group them under a single campaign. Multiple campaigns can be configured for tracking specialized data. This ease and flexibility finally allows proper A-B testing scenarios to be conducted within the Second Life platform.
The product comes in three versions, ranging all the way up to enterprise level. Pricing details haven't been released, but you can find out more from Code4Software directly.