an appropriately equipped Garmin, but Sprint and TeleNav have a slightly older-school idea (if you can really call EV-DO old-school) in mind. TeleNav Traffic supplements the company's phone-based GPS navigation software with traffic data updated every five minutes; problematic situations on your route can be delivered both via voice and on-screen prompt. Best of all, it'll route around jams, fiery wrecks, and other disasters automatically at the user's whim. Right now, availability is limited to Sprint's RAZR, KRZR, and Katana -- that's the bad news -- but the good news is that it's free for folks who pick up the basic GPS Navigator between now and June 30. After that, $3.99 / month is the magic number.