Smart Phone App for tracking MBTA Buses

[teele-sq.livejournal.com]

I'm looking for a GPS based tracking system for MBTA buses so I can figure out when they're running late etc. I mostly take the 77,86,87,88,89. Having a single APP that also tracks the trains would be nice.

So many choices!!
http://mbta.com/rider_tools/apps/

Anyone have one they're using and happy with? I'm soliciting recommendations. Thank you.

Comments

[mderidder.livejournal.com]

Right, but that only works from a computer. It'd be great to have that functionality in an app, then I'd consider buying one.

[dashford.livejournal.com]

Nextbus.com *does* have that functionality on my Palm Pre!