I must say this much, it looks pretty damn fantastic, and the price isn't all that bad. Kinda shitty that it's E-mount and not A-Mount but it does mean that a fairly affordable adapter will be able to utilize literally any old 35mm glass to it's fullest potential (including the old school A-mount, as apparently they have an adapter for that). Sony also drops the very 90's sounding "NEX" name with this camera.
On top of that, it looks fairly simple to use without a curmudgeon of buttons and shit that you find on modern day DSLRs, and costs about the same as a 6D or D600 for the base A7, which has a 24 mpx sensor, and 600 more for the A7R which has a 36 mpx sensor and a LPF.
And for you video guys, yes... it has a headphone jack, a flippy screen, and 1080p60 (1080p24 as well).
From what I can tell, it's a pretty damn cool step, and definitely something to consider as a slightly larger option to a m4/3rds or even NEX selection. The price is pretty fair at 1700 and 2300 for the R (which is pretty damn unnecessary) and overall it looks to be a really cool camera in a sweet looking package.
Battery life will probably be garbage with this camera, due to no optical viewfinder, but other than that, shit... this is looking mighty attractive.
Battery life will probably be garbage with this camera, due to no optical viewfinder, but other than that, shit... this is looking mighty attractive.