Of course the many social networks on the Internet are now bustling with yeas and noes. The novel was never as sprawling as any of the three volumes making up "Lord o/t Rings", so creating two films already seems like stretching the content a wee bit.
Then again, Tolkien's style of writing for "The Hobbit" differs a lot from the one he used in his illustrious sequels, painting everything in broad strokes rather than finelining each little detail. A case could be made that you can actually have more fun doing some worldbuilding based on "The Hobbit" than with "Lord o/t Rings", as you'd be filling the gaps rather than trying desperately to not trip over your own shoelaces.
So HAVE YOUR SAY: would you want the tale of "The Hobbit" shown in one, two, three movies, or none at all?