Audiobooks have several specific features that differentiate them from bunch of songs and make it hard to listen to them using regular audio player:
* They can have the same title/album/artist headers, with filename the only difference.
* They must be in certain order.
* Once an audio file was listened to, it can be automatically safely deleted, thus freeing up space.
This makes audiobooks fit nicely into podcasts model.
To convert audiobooks into a podcast I wrote a python script that scans given directory of mp3 files and creates RSS feed out of the files. The verion 0.1 of the script can be downloaded from abook2podcast.