Behind everything the brain matters...
I am just asking for movie quality deference
GH2 hacked has higher data rate, lower frame rate, and no stabilization unit that can compare to BOSS.
to my understanding, higher data rate means sharper image as per frame you will have more detailed color. Higher frame rate gives you smoother video and you can slow down a 60fps video better than you can do with a 30fps (with twixtor, I meant)
stabilization unit is more controversial: if you have a perfectly stabilized camera mount and you got rid off all your unwanted vibrations, then essentially you don't need a stabilization unit; however, for most of my multirotor platforms I find it rather hard to do so because any cross wind would cause a sudden rise in multicopters altitude as they can only utilize positive pitch and have slower reaction than collective pitch helicopters
Hence, I would hate to say, but I think the Sony will stay more or less permanent on my hexacopter. My GH1 and 5DIII goes to my helicopter platform.