Upload & Sell: Off
I'll very surprised if the 10-18 beats the 7-14 panasonic.
I have no idea if it'll beat the Panasonic; all I can say is the samples from the LL article look very, very good to me. As good as any crop-sensor UWA zoom I've ever used. Assuming you can get this kind of detail consistently into the corners, the color cast is just not a big deal to me, and easily fixed, even if I used a NEX-7. Of course, I have a NEX-5N, so it's even more of a non-issue.
MFT also has the Olympus 12mm F2, the Olympus 60mm F2.8 (incredible lens, can't think of any AF lens that has as little CA of any kind including LoCA), the Panasonic Leica 45mm F2.8, the Panasonic 14-45mm, and all the really good Olympus 4/3 SWD lenses. Only two or three of those focus very fast but the rest at least you get weather sealing plus electronic aperture and IBIS and EXIF. Then there's also the Voightlander F0.95 lenses which are quite, quite good.
If you're going to include 4/3 lenses, then you pretty much have to include the whole a-mount lineup with LA-EA2. And if you're including the Voigt lenses, I'm not sure why we'd care about native vs. non-native at all, since apparently AF is not the issue. I do wish Sony had a high quality standard zoom like the Pany 14-45, since it sounds like the new Sony 16-50 is pretty lame.