First off, it couldn't be a glider, if you wanted it to do that. Secondly, a balloon might be a better option. Thirdly, http://www.thevlecks.net/rmj/earth.html

First off, it couldn't be a glider, if you wanted it to do that. Secondly, a balloon might be a better option. Thirdly, http://www.thevlecks.net/rmj/earth.html http://www.thevlecks.net/rmj/earth.html It could keep up with the sunlight, if developed to be fast enough. Lastly, I would look into APRS as a better alternative to free wifi, in this situation.