Booking multi-destination international flights just got more fun (easier and cheaper too) thanks to Airtrek's recently launched TripPlanner 5.0. Their flash-based map brings hi-tech visual logic that makes planning a trip feel more like a fluid video game than competitors' frustrating pull down menus and pop up calendars. Mouse navigation zooms and pans across continents, enabling users to add destinations with a simple click. The new platform also means travelers can save and update a route, view it on a world map, explore alternate routes (including automatically suggestions of optional value-added stopovers), share plans with others and get instant "one-click" estimates.