Kevin Nakano has posted a review of the Screen Innovations Black Diamond II home theater screen at LA Audio File. His conclusions:
Screen Innovation's Black Diamond II is a great performer with significant advancements in screen technology. The BD II provided us with the best blacks we have seen to date on any screen. The ability of this screen to provide good contrast even with some ambient light makes it very practical. At just over $2000 for a 92-inch diagonal 16:9 screen, you can have a picture that will knock your socks off.
You can read the full review here.