As I've mentioned here, Audible's policy is that they'll only sell DRMed audiobooks, even if the publisher and author want to go DRM-free. That's not because Audible can't handle DRM-free files (they do some free/promotional stuff without DRM), but rather out of some ideological commitment to DRM. And since they're the exclusive supplier of audiobooks to iTunes, that means that you can only buy DRMed audiobooks through the iTunes store, despite Steve Jobs' claim that he wants to make the store DRM-free (he renewed Audible's exclusivity deal after making that announcement, though).
When Amazon bought Audible, they said they'd kill the DRM if they got enough public outcry against it.
Well, here's my promise: if Amazon drops Audible DRM and institutes sensible terms of service (something along the lines of "Don't break copyright law"), I will buy and blog an Audible audiobook here on Boing Boing once a week for six months. Link
I write books. My latest is a YA science fiction novel called Homeland (it's the sequel to Little Brother). More books: Rapture of the Nerds (a novel, with Charlie Stross); With a Little Help (short stories); and The Great Big Beautiful Tomorrow (novella and nonfic). I speak all over the place and I tweet and tumble, too.