There's going to be an art book for Terminator Salvation. It's going to be published by Titan Books. Same publisher who printed the Watchmen movie art book.
I will be buying it so you can expect a book review for that.
It's going to be out on 28 April 2009 and Amazon's accepting pre-orders.
Meanwhile, you can check out Terminator Salvation trailers on Apple.com
And here's a bunch of images I found on Wired, where they had an interview with the director, Joseph McGinty Nichol (aka McG).