Looks like Magellan isn't messing around with its new Spring lineup of RoadMate navigation units -- and by not messing around, we mean not changing things very much. Totaling ten units in all, the company's new lineup features models with 4.3-inch, 4.7-inch and 5-inch touchscreens, and seemingly similar specs across the board otherwise, with the biggest difference being the inclusion of lifetime maps, lifetime traffic, and Bluetooth on some models. Look for the whole lot to start trickling out to retail over the coming days and weeks, with about half of them already available on Amazon and directly from Magellan for between $169.99 and $