These 3 technologies together could vastly improve the world. Too bad no one thinks of success as how much you are able to provide others.
Free worldwide WiFi from satellites:
http://wearechange.org/forget-internet-soon-will-outernet-company-plans-...
Coming from solar power:
http://arstechnica.com/information-technology/2013/08/almost-orbital-sol...
Which also powers your... Everything?
http://inhabitat.com/duke-university-students-find-a-way-to-charge-cell-...
If an initial project can get on it's feet, and a trickle of free energy becomes dependable, the world will take it from there.