This is a good idea. Sony needs 3D because it's going to add more oomph and phizzazz to its Blu-ray initiative. 3D will add more content, and Blu-ray will be the best media to put that forward so this will aid Blu-ray as well.
Sony is also working this from other angles besides movie discs, they are also offering cameras for movie shoots that have 3d capability, and are probably going to offer software for 3d movie production as well to get yet another side of things.
So, 3d is ultimately going to be a double or triple, probably not a home run but still a darn good play imho.
Sony also sells movie projectors, for folks going to the local big screen. I'm sure that they will be offering 3d projectors as part of the conversion to digital, which will drive more sales of movies, etc.









