I would like to add airspace information to OpenStreetMaps data. I thought, the easiest way would be to have a tool that allows me to just paint my airspaces (line, rectangles, circles) over an OSM powered background. As the airspaces are defined on GPS coordinated, I am looking for a tool where I can draw in GPS coordinates rather than exporting the map to a bitmap.
I would also like to keep the map rather vector based, too.
Actually, GoogleEarth would do exactly what I need, but - obviously - with the wrong data/maps
Preferred OS would be Linux (Ubuntu), but I take what I can get.
any ideas, how this could be accomplished?