I'm doing this partly for fun, and mostly because I use the OSM DB's in various ways. I mostly correct stuff or complete/verify in the immediate neighbourhood of where I currently live. But I also do some new stuff. the new cloverleaf on the R6 in Sint-Katelijne-Waver is from my hand and gpx tracks recorded with professional devices and android phone. I would love to get in touch with other mappers, more or less in my vicinity to talk about tagging/postcode naming strategies and so on. Feel free to mail me.