Have to say the D850 does look good...wouldn't look forward to switching mind you, especially as I am very rarely at the limits of what my current kit can do.
Its a camera at a level and price point that will attract pros and semi pros as well as keen amateurs buying from a blank canvas and looking for the panacea.
As anyone seen confirmed release dates? Saw one post mention that stores will have 4th Sept for global distribution from 10th
Unfortunately that doesn't tell us too much as it's not got a score for base ISO. That being said the curve looks pretty similar to the D810's so that's promising.