I talked to Sony rep about this. They said that you need to hold it differently. You might want to use your THUMB (yes, not your index finger) to press the shutter button. So you are holding it like you are holding a a joystick, with your thumb on the top/shutter button and your other fingers are holding the front surface.
They "invented" this since the regular hold (index finger on the shutter button), there a muscle strain on your wrist.
While I agree with their assessment, I would say that the THUMB-shooting style is more appropriate for chest-level camera placement rather than bringing the camera up to your eye level (using the viewfinder).
My god what a thing to say!
This thumb thing is back again!
Ist we had the use thumbs to change top plate settings, but this is going to far ;-)
What next? We need to use our toes to operate the camera?? lol
Who are they kidding? Time to invade sony design HQ with some folks who "use and understand how to make cameras"
Looks like a nerd attack from failed college students, than a serious camera design effort.