Sony bit the bullet and developed what was considered next to impossible to fit a FF sensor into what can be seen as a really small body - comparable to say a GX1 or Canon M mirrorless body. I must say it is quite a feat to do so. They kinda achieved a holy grail and obviously the next step in the development pathway is a FF interchangeable compact system. To me, I see APS-C delivering acceptable quality already but the annoyance is that I cannot use my rangefinder lenses at native focal lengths. So this is very welcome.
I also must applaud their taking the physical dials and control from the very successful design of X100/X-Pro1 - aperture ring, exposure dial and focus selector and yet took a practical approach of not incorporating a shutter dial. I believe 90% of users simply set the shutter to A and just roll with aperture priority, thereby actually limiting the use of dial real estate the on the body.
It seems that it nearly has all the ingredients for success but it seriously fails due to the lack of a built in EVF. I hope the external one is not too heavily priced and melds in nicely with the design without being too obstructive. The EVFs on m43 bodies tend to appear too clunky and out of place.
If they actually featured an EVF like the NEX7, I would be in trouble with real hankering to get one. For now, it seems I am safe...