I assume you are talking about NVidia's upcoming ones that work with a 120Hz LCD. I haven't seen much info on them yet except they are due out this year.
I too have an old pair of edimensions. Don reviewed them on Tom's a while back.
http://www.tomshardware.com/reviews/wall-sized-3d-displays,1581.html
Mine work with a CRT or with the projector as the article explains. I found it a fun novelty, especially with the projector, but not useful on all too regular a basis. If I had a decent rear projection screen that didn't darken the image too much, they may be better. You want a bright image and to sit fairly close to the screen.
It's nice to see the GF8's supported though. back when I got mine, there was no GF8 support so I couldn't use my 8800GTS 320MB and had to use a spare 7800GT instead.