Magellan today produced a quick but important hardware revision for its RoadMate line. The 1475T improves on the earlier 1470 with free traffic updates that help re-route drivers around congestion. Magellan's approach is ad-supported rather than subsidized and helps keep the GPS device's price down.

Aside from this feature, the 4.7-inch touchscreen, 6 million points of interest, AAA tour and roadside assists, lane assist and quick preset features are ported over directly from the 1470. Adding traffic lifts the price to $299 on the 1475T, which should be available today.