Seeking to invert the traditional power structure of cartography, the grassroots mappers use helium balloons and kites to loft their own “community satellites” made with inexpensive digital cameras. The resulting images are georeferenced and stitched into maps which are 100x higher resolution that those offered by Google, at extremely low cost.
Huh. There’s so much in this video I won’t even comment much. This pretty much sums up the awesomeness that open source & hacking can be.