MaxPunkte Streckenflugauswertung is a German GPS tracking tool optimised for hang gliders, the most recent versions of which converts to KML as well. There certainly is no shortage of such converters these days.
Only last week I was fantasizing about how cool it would be to map one’s GPS coordinates in real time onto Google Earth while flying across the Atlantic with Scandinavian Airlines and connecting to the internet using the onboard wifi.
This week, it would seem that we’re already almost there. Brady Davis
and Jeffrey Hicks have hacked Google Maps to bring you the DIY Real Time GPS Tracker. It currently works with Google Maps, not (yet?) Google Earth, and it isn’t for the programmatically challenged, but it is most impressive.
Given that the conversion tools from Google Maps to Google Earth already exist, tracking onto Google Earth can’t be too far away, can it?
Over on the Keyhole Community bulletin board (Keyhole is what Google Earth was called before Google bought it and made it free), somebody has converted GPS data of live locations of public transport buses in Boulder, Colorado, and turned them into a KML file that updates in real time. Great proof of concept.