The machine-machine conversations, virtual hell, etc. parts of his books would probably not translate well no matter who was directing.
Otherwise, the material seems as well suited for adaptation as anything else. Consider Phlebas could be fantastic in a ~2hr movie with special effects worthy of the images he paints, a tone weighed towards realism, and an Aphex Twin / Caustic Window -like soundtrack.
[1] https://web.archive.org/web/20090715133026/http://www.sffwor...
"How would you like to see your science fiction books filmed, if at all?"
"With a very, very, very big budget indeed. The one I'd most like to see done is Consider Phlebas; if they kept in the sequence where the megaship hits the giant tabular icceberg, the fist-fight under the giant hovercraft, the bit where the Clear Air Turbulence escapes from the GSV, and the final train wreck, I wouldn't even mind if they changed it to a happy ending!"