The deal-maker for me, with the Sony NEX series, was the 24meg sensor of the NEX-7. If I wanted a smaller sensor - in megapixels - I would go perhaps Olympus OM D-5, or just stay with my Pentax K5. I don't see any 'have to have" improvements in the NEX-6 that interests me. When everything is said and done, it all comes down to the glass, and not matter which Sony NEX series body, they are still lacking a variety of superior lenses.
CAcreeks: Good to see news items about alternatives to Adobe software. Does PaintShop Pro X4 run on Linux? I guess not. Corel AfterShot Pro does run on Linux (formerly Bibble Pro). It might be a good alternative to Lightroom.
I use AfterShot Pro on linux, and it's great, I shoot RAW and do most of my post processing In After Shot, with any finishing touches in GIMP. Quick, efficient, and very cost effective.