I was glad when I read it on a few sites (so not my idea, but glad it helped you). Its very disappointing that a camera with a sensor that has so much DR has a viewfinder with so little. Hopefully the requests I've seen for Sony to include a separate VF adjustment in a firmware update can be listened to, because it really is a fun camera to use.
Yes, the DR of the NEX-7 sensor is phenomenal. I find shadows to be nearly unrecoverable (they are grainy and green-tinted even at ISO 100), but highlight headroom is sensational.