Interesting. 48fps. I'm curious how that will translate to home viewing. 1080p hi-def still operates at 30fps. True, they're experimenting with 50 and 60 fps standards for the future, but probably won't be ready for prime-time any time soon. If the film relies on the higher frame rate, it may loose something when it hits BluRay. I'm genuinely curious how this is going to look in theaters.
With regard to the concerns about this new frame rate, I would agree that this may be very jarring for movie-goers. I remember how weird it was to see old shows like Fawlty Towers, Monty Python and other British shows switch back-and-forth between film for outdoor shots and video for indoor shots. It's amazing what a lack of film grain and a couple extra frames per second does to a moving picture. I cannot conceive of what 48 is going to look like. Yep - could be really weird...