I've posted a few items about this at my blog, including speculation that Pixar was planning a trilogy (Oct 2007) and speculation that Disney might be looking at this as a franchise to replace Narnia (Mar 2008), but we don't seem to have a thread on it here yet. At any rate, today The Pixar Blog claimed that "Andrew Stanton has personally confirmed that he is currently writing John Carter of Mars. More details to come."

Interestingly, three years ago, the director attached to this project was Jon Favreau, who at the time was putting the finishing touches on Zathura. He has since made Iron Man, instead.

I loved these books growing up. Seriously--forget "Transformers" (which I never played with) and "G.I. Joe" (which I never knew there was a story-line/character-line on)--this was my early passion, along with the Pellucidar books. Great, great stuff. I'm kind of looking forward to seeing this.

I thought this might be of some interest. Here's some test footage of a proposed series of John Carter shorts that animator Bob Clampett worked on in the 1930's.