Unlike the rest of the NEX series, the NEX-7 has a full set of physical controls, all of which are completely programmable. These include a button on the top next to the shutter and two large thumb-operated dials.
The interface reminds you of all your custom mappings for the buttons and dials; for instance, here you can see that the two thumb dials control shutter-speed and exposure compensation, the bottom button will bring up the focus area options, and the dial is set for ISO sensitivity. The button that displays "custom" brings up access to three different settings (in my case metering, white balance, and DRO), though that button is by default usually reserved for selecting the shooting mode. My only complaint is that these programmable buttons are very hard to find by feel when you don't want to take your eye away from the viewfinder. Otherwise, I love the design.