Google's taxi finder
Google now can direct you to a taxi? Since they normally go through dispatchers, that info doesn't seem inherently useful, unless you had the cell phone number of the cabbie (which the cab company might not like so much.)
OTOH, I always thought using anecdotal/tracklog data on how taxi's get from point A to point B would be more useful than least-distance algorithms when providing directions to people. It seems like that would factor in conditions like time-of-day and transitory construction obstacles in a natural way.
I wonder if anyone at google agrees?
Update: Mikel Maron reports that the tracklog data is currently exposed, and has done a rather neat visualization. Supershuttle, we're watching you :-)