Mapper since: October 27, 2011 | Contributor terms: Accepted over 3 years ago
I use a Garmin Nüvi 1300 and live in East London. I mostly use it in city driving, but also do occational off-road 4x4 driving. Although I love my Garmin, one of the things that has annoyed me is that it is difficult to fix any mistakes I find or update the map when new roads are contructed. Openstreetmap.org solved this problem. I now build my own map with OSM data and I have made it available to Apple MacOS users only at http://www.andrew.nom.za/osa (not because I am a fanboy, I have limited bandwidth).