I have one BD here that is 3D. It uses the red / cyan glasses.
Here's my opinion on this technology-
It is a cute gimmick. Fun for a once in awhile experience. I don't see it becoming mainstream production. First of all it does require that a special effort be made to produce a project in 3D as it requires special cameras. You can extract 2D from the 3D shoot for that version but not vice versa. So, production cost is a consideration.
The BluRay 3D home theater experience is the best effort I have seen in 3D so far. Being BluRay the 3D image effect quality is clearly present and best experienced when you watch in a viewer to screen distance that immerses you in the image. It takes me about 15 minutes every time I watch that 3D show to get used to wearing the glasses. I always get a slight headache until I settle in and relax with having to wear the colored glasses. Then it is OK. I'm sure this will vary with the individual. The natural color is modified and is not a real natural color image. You have to get used to that. This is where the Polarized system improves as the colors in those productions are all natural. Unfortunately the Polar 3D system also requires special monitor of front projector for display.
The only 3D BluRay disk I have is the Hannah Montana one that recently came out. If you're into a new gimmick for your Home theater it is worth the cost for the experience, but this technology is not ready for the average viewer. BTW- The Hannah Montana Rock concert BD also has the 2D version on the same disk. You select this at disk startup.
So, I am one that selects YES, I'm interested in 3D on Blue Ray. I don't see any harm in offering a few titles in this format.
I have seen the Mitsubisi system at NAB. It does use the glasses. They are shutter type, not Polarized. They use a look thru LCD lens and need to be connected to the TV. The glasses use a cable for most reliable connection but the system also has less reliable IR signal wireless glasses. These glasses are thick and heavy to wear. The 3D effect is better than the colored glasses but not as good as the polar system. It is also expensive and doesn't offer any programs, just demo content. Still an experiment.