Scott Squires:

"Peter Jackson has been shooting The Hobbit in 3D at 48fps*. Jim Cameron is looking at doing Avatar sequels at 60fps. The preview of some of The Hobbit footage this last week caused some concern and confusion. I didn't see the footage but will describe some of the reasoning and history of why frame rates are being explored".

A great look at why maybe Peter and James have the right idea. That is if that is what your after.