I use GF-1 and just got a NEX5 with the 16mm. Apart from its true performance, I might just want to add that the NEX is a product of market demand, studied by whoever. LL is a forum heavily influenced by mindset of westerners, which is also a large market, but not the only major market. A lot of Japanese consumer, and younger consumer, and female consumer, does like the statement of small and compact, and their daily life involve with all such kind of interface, all electronic and unlogical, but they are so used to. The Sony NEX is not more complicate than many cellphones. Its compact design also makes some mechanical design not possible, and electronic menu is cheaper on cost, so I assume part of NEX's agreessive price policy made possible with the less costly electroic user interface and control, I think it is more or less target to a market than most of its user use only so called "intellegent mode" and JPEG only. Professional user demand a lot, very few camera ever satisfy them, but then, sometimes professional is professional because they can produce good images regardless the camera (or even cellphone camera), like or hate. The NEX is a nice concept as MR put it, a concept biult on both still and motion pictures. plus it is rather inexpensive.
Regards, K