It's been a good couple weeks for BlackBerry users. First came Google's new Mobile App, and now there's MapQuest 4 Mobile, a new app that brings the eponymous mapping service to BlackBerry devices.

It was a nearly cloudless, sunny day in San Francisco as I set out on my Wednesday drive. My goal: Test the accuracy and timing of the maps and driving directions provided by Yahoo, Google, MSN and ...

Suppose you're headed across town to meet with a new client. The directions you got from MapQuest say the trip will take you about 35 minutes, so you plan accordingly. But then you get caught in ...