It really is amazing how systems like this connect a city.
I was in Detroit for the auto show last week (http://www.naias.com/) and they have the 'People Mover' in their downtown. It's not really a streetcar, but it was really nice to hop on it in the middle of the winter to get across town. Man, that city is cold!
There were some cool cars in that auto show too... I wasn't just impressed by the People Mover.