I got an iPhone, which replaces several of the items I had been carrying with me everywhere: my iPod, small camera, and phone. The camera aspect leaves something to be desired, but does give me some flexibility to grab a shot when I see it. So my small travel camera is now in my desk drawer, and the small iPod in my gym bag.
I find this shot simplistically satisfying. Simple vanishing point, primary colors, high contrast. Might have been more interesting if the train were moving. The iPhone with it's small lens and lack of flash, generally has a long "exposure" time, so movement can be captured.
This is the blue line at Aquarium in Boston.