I am now an international man of mapmaking! I've uploaded the data from my business trip to Gaborone. Fixed some roads, added a road name or two, added a number of buildings and actually added new roads that weren't on the map at all! There are lots more that need to be added.
I took a lot of pictures of street names that just weren't readable. Unfortunately, when you're only there for a day and have to work, there's only so much time to write down street names.