So I have multiple years of google location data saved on my account.  

What kind of interesting stuff can I do with it? 

The stuff that I would WANT to do is unfortunately behind a gate that I can't access.  I would LOVE to be able to see how many times I was within a quarter mile of another person who also has their location activity logged by our lord and savour google.

Maybe making an app that lets people who have came across each others paths multiple times in a given time a choice to swap messages/pictures/whatever... a social network designed around random locationness.