Diplays map form Openstreet, NAsa, Google Yahoo, and A ZOOM and PAN : MODEST MAPS !
What Modest Maps does: Displays tile-based maps, from sources such as OpenStreetMap, NASA Blue Marble, Google, Yahoo!, Microsoft, and others. Supports developer-defined tile sets in arbitrary geographical projections. Smoothly pans and zooms. Tracks the position of geographical map markers. ActionScript 2.0 codebase works with FlashLite. source : http://modestmaps.com/