The short answer:no.

However, if you have a Windows computer, you can stream Audible books to your N800 using Orb (www.orb.com). Audible is one of Orb's sponsors.I have streamed many Audible books to my N800 using Orb.

BTW: Don't rely on emailing them for anything. I was their good customer for many years and found them extraordinarily unresponsive to requests, though they always responded as quoted above.

And don't believe amyone who says it works with Wine unless they tell you THEY have done it. It didn't work for me when I tried it.