I've been jumping through some hoops to get things powered on my multi-rotor rigs lately and it occurred to me that a slightly more advanced version of the 3DR Power Module could solve it really neatly.

My suggestions for 2.0 is in addition to the power going to the APM and the pass-through power for the motors, have additional 5V and 12V breakouts. It would also be good if it could handle more than 4S, for larger Octocopter rigs:

Input: 12-25v (3S-6S)

Outputs:

1) bypass (same as input)

2) 5v for APM

3) 5v for other (camera gimbal servos, video tx, etc)

4) 12v (some common FPV gear, etc)

And I think the APM's power connector should use a more secure connection to the Power Module, I've had it come loose (thankfully not in flight) because that cable gets yanked around a bit connecting and disconnecting packs. Perhaps a Molex style connector with a little latch.

All in favor say 'aye!'