Dell drops the price of the Magellan RoadMate 1470 4.7-Inch Widescreen Portable GPS Navigator from $199.99 to $99.99 with free shipping when you add it to your cart. This ties the lowest price we've seen on this GPS system. It features a 4.7" LCD display, spoken turn-by-turn directions, and can display live traffic updates to help avoid traffic jams. It has almost a 4-star rating on over 200 reviews. Sales tax is charged in most states.