Of the free GPS applications we've seen so far, Scout gives the easiest directions to follow when you're in heavy traffic. It should: It's developed by TeleNav, the makers of the excellent but costly AT&T Navigator service.
Scout's bold arrows, clear graphics, current traffic events and strong local search all serve the weary traveler well. Especially handy is the one-button scouting for nearby gas, food, parking and ATMs.
So far so good, but if you want the really good stuff you have to pay: Voice navigation and automatic rerouting for traffic slowdowns require an in-app upgrade starting at $4.99 a month.