I was a paying member of Audible for about six years. Audible is not very interested in changing in any directions suggested by customers, in my experience. Sometimes the company will tell you they are listening, but it becomes obvious that isn't true.

Orb does work with Audible and so you can stream content from your Windows computer to your tablet.

Since the tablet is compatible with Palm software, it is possible that you could run Palm software and use it with Audible content. However, no one has reported success with that approach.

I solved my problem by getting a Centro, which allows me to listen to the hundreds of Audible books I purchased.

Some kind of tricked-up java compatibility is claimed for the tablets, but I have never tried it.