The units look really nice, and are pretty light. The frame is 440 grams. It's two halves are permanently bonded together, and each arm has a hatch for accessing the motors and ESCs. There's a top shelf in the center for the flight controller, receiver, and any other electronics. I'll be helping him with some testing and flight controller selection/tuning.
As a bonus, we did some crash tests. Quite sturdy! The last crash took a prop off and pulled a motor loose; Sean's got a new double-cup design that will strengthen up the motor mount.
Here's some videos... flying around in the rain, and then crashing the unit to see how much of a hit it could take. To best see the rain, watch in HD!