Over 10 million yen was donated for the train's renovation. On the opening day the train left Idakiso Station and ran the eight or so kilometers to Wakayama Station, with Tama aboard in the driver's cabin.
It's great that the Japanese have these cuddly animals as keepers of their train. On the London Underground, we're a bit more jaded, leading people to think of pet representations like this:
Thanks to Jon Justice for the image above and the Tama story. Who knows what the Japanese actually do on April Fool's Day? Most of the stories that come out of there make it seem like April Fool's Day every day.