MapQuest’s Navigator has been updated to version 5.0, including new features like gas prices and station locations, guides to what’s going on in your city, and live traffic updates. Audio turn-by-turn driving instructions is also new, along with a new interface that lets you switch between front-facing and above-ground views. Although that’s all sounding pretty old hat compared to the competition, MapQuest is also letting you search locations, plot routes and push them all to your handheld from the desktop. Not too shabby. They’re asking $4.99/month until the end of December, which is half off their usual rate. If you’re looking to try out the GPS on that newfangled BlackBerry 8130, you can sign up to Navigator over here, or get more details here.