"The path we took in NEX-7 design was hardly straight. All we had decided initially was that three dials would be used. This came from a desire to organize setting elements (for shutter speed, exposure, color balance, and so on) with a three-way control system and provide more immediate control and versatility when shooting. It was essentially our only beacon in design. With the trio of dials, and within the general framework of NEX design introduced for the NEX-5, we revisited the question of what DSLR
users want and what's essential in a camera. It also occurred to me that NEX-7 design should embody its basic message as a camera here's something capable of great shots.
The character of this camera can be summarized by a few key points. You can shoot through the viewfinder, you can hold it securely, and you can adjust settings instantly, as needed. As for viewfinder shooting, at first we had no definite plans to include an electronic viewfinder (EVF) or flash. But discussions with product planners and engineers clarified what our target users were truly hoping for, and we decided they were indispensable."
Stuff-Review has made a nice little chart that pits the newcomer against the almost established crowd. That's all pretty theoretical though, since 3 of the 4 cameras are practically not available in the majority of the western world:
I wonder what the market would look like right now if the 2 big natural disasters of 2011 didn't occur. There will be another couple of months until Sony can move these babies at significant numbers.
"Why you’d buy the NEX-7: access to E-mount lenses, Carl Zeiss and (via an adaptor) Sony A-mount optics.
Why you wouldn’t: you prefer external control of exposure modes; with lens attached the camera is not pocketable; pricey.