Google's location history tracking was already pretty neat, if you didn't mind the potentially creepy data sharing. Its recent Dashboard update makes it a lot more useful and interesting, batching your travels together and showing your distance to, say, the moon.
Assuming you're using Latitude and you've opted in to the Location History, Google has started batching together your wanderings into organised, visualised "trips". It should pick up both obvious trips, where you spend three days travelling around a city not your own, and other trends, like weekly visits to a certain location. You'll get map thumbnails, distance totals, and the ability to compare times spent on the road versus stationary at work or home.
Google assures users in its blog post announcement that Latitude location history remains an opt-in, your-eyes-only service, but we'd guess those concerned with Google's voracious hunger for data aren't going to love the idea of tracking their location at every moment. For those with more interest in statistics than fear, though, it seems like a neat tool.
Where Have I Been? Get Your Answer with the Google Location History Dashboard [Official Google Mobile Blog via Gizmodo]