You guys have finally lost the plot haven't you.
Are you seriously taking one frame cap and comparing the apparent brightness/contrast to another in order to make a definitive judgement on the new, vastly improved colour rendering algorithms? Seriously?
You remind me of the sheep that go into BestBuy and purchase the loudest, most garish looking TV on the shelf because it looked so vibrant playing Toy Story 3.
I'm sure there's room for tweaking improvement but finally the landscape doesn't look like a cartoon and already the conclusion here is that they simply messed with the brightness. Lol!
Carry on though, im always entertained by how fine a hair can be split in this forum!