Handy Metro DC, a guide to Washington DC's Metro rail system is live in BlackBerry World
and available for BlackBerry 10 devices.
It was created using Enyo 2.2 with a little CSS styling inspired by bbUI.js
to give it a nice BlackBerry 10 look and feel.
If you don't have a BlackBerry 10 device or have no plans to ride the DC Metro you can still see some screenshots at http://foulweatherapps.com/handymetrodc