jessecuster3I think you're missing the point. The crazyflie is completely open. It is a development kit. That is, you have full access to all the source code, from firmware on the radio and copter to the flight controller app itself. Further, it was all developed with open-source tools so you have full access to the PCB designs and everything else that went into making it. If you want to go fly a toy, the link you provided is great. If you want to hack a mini-quad copter, crazyflie is where it's at, brother. :)