I can be acquired in the beta feeds, here: http://developer.palm.com/appredirect/?packageid=com.pyen.bart.arrival
This time, I've added automatic refresh and removed the manual refresh button to simplify the UI. Right now, the refresh is every minute. I have a feeling that might not be often enough. Please tell me if you think that the refresh interval should change.
I've also fixed some misc bugs. Yay progress. :-)