I installed a little “trip tracker” app on my BlackBerry before I left. It is called GPSed and, other than the fact that it seems to have a dickens of a time getting a GPS lock at times, it works pretty well. Note that the GPS lock problem is really an issue with the BlackBerry- however, the BB also has a cell tower location system that other apps use (e.g.: my weather app, BeWeather).
You can follow our trip here=> http://gpsed.com/track/2776748136093189273 . Since I upgraded to the “professional” version of GPSed, I will now be able to annotate the waypoints with photos from my phone. Yay! And note that the map is powered by Google Maps, which means you can zoom in like crazy.