Hate gridlock? We'd surmise you aren't alone, so pardon our excitement surrounding the latest addition to TomTom's longstanding iPhone app. New in version 1.8 is the addition of HD Traffic, which extends congestion data to both "major" and "secondary" US roads. Existing TomTom Traffic subscribers get the functionality gratis, with the rest of us dishing out $20 via an in-app purchase. Free for all who upgrade are multi-stop routes, allowing one to tweak excursions to your heart's content -- provided you can count those diversions on one hand. The updated app is already live in the App Store,
