Ladies and gentlemen, if you've ever thought about the potential for unlimited range by using cellular data to control your Bebop, you will find the Kittyhawk project most useful. A full stack solution is available at:
No firmware hacks or hardware mods required, simply install Kittyhawk.js on an android smartphone (instructions in README), put the rest of the code on your web server, and say goodbye to range restrictions. Ps. The android smartphone should be SMALL AND LIGHT - Because you will be tying it to your drone!
Enjoy and please contribute to this project!