This is great! A good way for beginners to get their feet wet with OSM.
I'm sure they'll add a lot of improvements eventually, but if you're looking for a more feature complete, more polished OSM editor in the interim, take a look at the ArcGIS OSM editor: http://www.esri.com/software/arcgis/extensions/openstreetmap
I'm sure they'll add a lot of improvements eventually, but if you're looking for a more feature complete, more polished OSM editor in the interim, take a look at the ArcGIS OSM editor: http://www.esri.com/software/arcgis/extensions/openstreetmap