I recently ran into a situation where I needed to use Kismet with GPS support. This was extremely difficult to accomplish, not because the installation is difficult (its actually fairly simple when you know the steps) but because there was absolutely NO decent documentation on this. Hopefully this will change that.
more here............http://www.shortbus.ninja/kismet-with-gps-in-kali-linux/
more here............http://www.shortbus.ninja/kismet-with-gps-in-kali-linux/