[danso]

So for the trains on which they have real-time data, there are already LED-boards that show arrival time:

http://i.imgur.com/QzgGr.jpg

If you're on the platform, you'll be able to see the time even if your phone isn't working. So the mobile app will be useful if you're en route to the station and need to know how many minutes you have left.

[natejenkins]

I was always amazed that the arrival boards are not available at every subway stop. In 1912 I could understand, but in 2012 this seems ridiculous.

[timjahn]

So the next train comes in an hour, and the one after that comes in a day?!

I'll stop complaining the next time the L is a few minutes late. Yeesh.

[chimeracoder]

Man, I've heard horror stories of the L, but 25.5 hours is ridiculous.

[josegonzalez]

You're thinking about the G train.

[chimeracoder]

The L has its own horror stories too (mostly because it lacks a third track).