Destmapper uses Google Maps to show you how far you can fly on a specific budget. The map uses flight cost data from adioso.com.
On first loading the map determines your location and begins to load the destinations you can fly to from that location for under $189 (prices are displayed in New Zealand dollars). Users can then increase the cost of flights that they are prepared to pay for by using a slider control.
As you increase the cost of flights more locations will be marked on the map. You can also load different price-range locations on the map via a number of quick links. The markers displayed on the map are even colour-coded by the price range of flights.