Hello! My name is Mike and I am about to get a Phantom. Ive been going back and forth between a P4 and a P3 and I think Ive settles on the P3. Granted the P4 has some great features, but for me, Im not sure its worth the extra $$$. I plan to use it at the beach, and to get some mountain biking footage. I figure using Litchi with the follow function will be acceptable... Thanks for all the great info here!