When did this happen? I’ve been craving this for years. In a city like New York, not showing the subway on a map is a little like only showing 50% of the streets. It makes using it for traveling difficult. Sure, there have been some good subway mash-ups, but these are never as good as having the data natively in Google Maps. It’d still be nice to see the actually train routes, but this is definitely a step in the right direction.
