I've done a few hours of playing around with the 900 and as a DLP guy, I'm very impressed. I'll have more to comment on tomorrow after I run it through a full eval with Avia Pro and OpticOne, but right out of the box it looks really good.
This is the 4th unit I've seen now (two at CEDIA, the one used in the Projector Reviews test and this one) and none have had even a hint of vertical banding in any of the scenes or full color screens mentioned in other posts. I don't see any other artifacts (like FPN), but I've never seen it before so I'll defer to those that have.
There are a lot of adjustments possible through the user menu, so it could take some time to fine tune everything.
Most of the menu adjustments and capabilities are the same as the 700 and yes, the manuals are almost identical.
More to follow.
Surf Remote Control