Updated the firmware this morning and took a couple of shots. The WB is a bit more consistent. Although in the samples I post here, they are different because in one shot I left as "As Shot" and the other "Auto"
Shot with the Zeiss 15mm
http://www.flickr.com/photos/torralba/sets/72157594562149641/
Shot with the Zeiss 15mm
http://www.flickr.com/photos/torralba/sets/72157594562149641/