The new DLP projectors are very cool for the money. Between the HD72 and the IN76 it should really give the AE900 and the Z4 a run for the money.
I've gotta say that I disagree with the reviewers conclusion that lens shift is wasted on projectors. I find that the reality is that lens shift is not enough on many projectors, but units like the AE900 and (especially) Z4 give you far more versatility with placement, while the fixed lens on the IN76, and moreso the HD72 (Optoma) can be a deal killer.
With the height of the projector included, you would have to place a 100" diagonal screen about 1 foot below the ceiling for the IN76 - another half foot or so with the HD72. This isn't horrible with an 8 foot ceiling... But, these projectors are targeted towards lower end buyers. Not basements with 10 foot cut ins, but 8 foot ceilings with duct work and, if you are lucky, 7.5 or more often 7 foot ceilings. That puts most of these screens about 2 feet off the floor. Which is really really low for most people. The Z4 and AE900 allow the screen to pretty much go wherever it needs to go, which is killer for those in the less versatile setup. Especially with their 2.0 zoom lenses.
Still - if that projector or the HD72 fits - the value is very hard to deny.