I'm mapping in Extremadura (West of Spain), mainly in Cáceres province and also wherever I travel. I use a Garmin Legend HCx device. I also check bugs in the OSM data all around Spain, mainly those related with routing. I build routable and topo maps for Garmin devices from OSM data for several countries of Europe (Spain, Portugal, France, Switzerland), Africa (Algeria, Ethiopia, Morocco, Tanzania, Tunisia, Western Sahara), Asia (Vietnam, India) and America (Central America, Argentina, Bolivia, Chile, Ecuador). They can be found at http://mapas.alternativaslibres.es I also serve files containing different kind or erros on OSM data for those countries.