The whole world of BD-3D is not getting properly addressed by projector manufacturers and it's extremely frustrating to see ANY projectors badged as '3D' when the format that is garnering the most attention right now is the new BD-3D specification.
I do know that LG was showing off all of their 3D capable projectors at Infocomm hooked up to their 3D Blu-ray players at the show. I mean, EVERY projector which could do it was running Blu-ray, not the nVidia card and a PC. It was extremely cool to see them using sub $1,000 projectors with Blu-ray without any hiccups.
There are some great 720p projectors out there and the HD66 is a solid entry level projector, but I wouldn't buy it for the 3D aspect unless I was sticking with the nVidia card solution.
It sure would be nice to see some reviewers with nVidia cards, and some 3D BD players start to test and try out the new 3D projectors.