All this talk about MS buying out Yahoo had a few people thinking Yahoo have already started to turn their backs on the Flash Platform, then along comes a Yahoo! Maps for ActionScript 3.0.
The all-new Yahoo! Maps component for Flex 3 enables you to add a map to a wide-range of web and desktop applications. Included in the API is support for other Yahoo! APIs including the geocoder, local search and traffic APIs along with an advanced marker and overlay manager to allow you to easily represent data on the map.
More info at http://developer.yahoo.com/flash/maps/