well not really geoLocation and perhaps not exactly g11n but Geoclip is probably one of the best flash apps i've ever seen. try the "Travel through France and its 36.557 municipalities" app. the first thing you might notice, is that the flash app isn't loading the whole spatial database in one go (ie data and flash app are seperate). if you drag the green rectangle around the reference map and then click "extraction by municipality" the flash app runs back to the database (mySQL) and pulls the spatial data within that area. this allows for flash to front-end some really monster thumping spatial databases (and these things tend to get very big). eric's even got an SVG version.