A could have named this thread "be careful what you wish for". I've been shooting FF on and off along with APS-C (before I tried m4/3 and came back screaming to NEX) for a few years. Started with the original Canon 5D (a true classic camera), and then on to the Nikon D700, which I had two units of, and that is still my reference camera to this day. I also had two 1DMkII bodies, which have the weird and now abandonned APS-H x1.3 Canon crop factor sensor. This, for my use, may be the ultimate perfect sensor size. Very very close in DOF control to FF, yet a tiny advantage for telephoto. JUST right (of course it was too good to stay alive, lol). So, we all know (or reasonably expect anyway) Sony is working very hard on a mirrorless FF camera for 2013 (hey, remember they already have an FF COMPACT model out !!!). At first I thought I'd be all over FF NEX (and I probably will). BUT we have to wonder how much benefit that will bring vs. negative. Cleaner ISO, sure. Not that I really care. The 16 MP chip in the N, R, (F ?) and 6 is already VERY good. I use a lot of flash anyway so I rarely resort to high ISO. Shallower DOF. Now THAT's where we have to be careful. Of course as a shallow DOF nut and addict, I want that, but nailing critical focus with fast prime is already a challenge on APS-C, so it might become hair pulling with FF. Certainly something to consider anyway. And of course, wide angle. Ah ah, there's a catch here, landscape shooters will love getting their wides well... wide again. However, a "normal" lover like me (having about a dozen nifties right now, and collecting more) might all the sudden be in an akward situation with all my normals losing their short telephoto status that is so sweet for portraiture. Meaning I'd have to go a look for good 70ish and 85mm replacements, hmm... So I'll tell you what Son's got to do (SONY, ARE U LISTENING !?!); They need to take the same smart path that Nikon did : allow BOTH FF and APS-C ratios in the same camera !! My D700 could shoot in "Dx" (Nikon's name for crop factor) mode (albeit at a lower MP count) and though this received a lot of bad mouthing from clueless people, real users took advantage of this brilliant feature, with no IQ loss (in my experience). Please Sony give us an FF camera that can still retain its ability to use a crop of its chip, at the user's choice. I do think the A99 does it (??), so I'm hopeful. Waddaya guys think ??