Andy Monat (mbtainfo.com), Andrew Collier and I (Ari Ofsevit) have been talking about these data for a while and finally put everything together in to a submission at the very, very last minute (twice!). I think I finally registered for the project with 11 minutes to spare.
Anyway, the entry—as it stands now—is in the posts here, with maps, charts and an interactive graphic linked. Posts focus on late-night taxi location data, the other compares late night T usage to normal weekday use, the cost per trip and induced demand (and how it compares to the previous Night Owl service), and we explore some information that we can infer from these data. Have a look around, and probably go vote for us at some point?
Oh and tweet us @ofsevit and @mbtainfo for sure!