Red Mars

Red Mars on Sci-Fi in 2004. Despite Sci-Fi's glaring, huge, numerous flaws, missteps, and weaknesses as a network, they have gotten a few things right. Just enough to give me hope for mini-series based on Robinson's book. I'm curious if anyone knows whether James Cameron is involved in this? There was a bit of KSR movie buzz after Titanic when Cameron bought the rights to Red Mars but nothing ever seemed to come of it. I also haven't had any success unearthing casting news/rumors, rumors of any kind actually. This one item from June is all I've seen. Surely some progress has been made in the last 6 months? Locations? F/X company? Writers? Director? Anything?