Well, after 6 years, I finally gave up my trusty iPod Nano + Creative speaker and joined the ranks of those who use their smartphones for everything, including my always-necessary audiobooks.
I am still a huge fan of my local library, so I use the Overdrive app for free, instantly downloadable audiobooks that you can borrow.
But for things the library doesn't have, I saved my pennies and got myself an annual subscription to Audible.com. (This is actually my 2nd year!) You get 12 credits to use whenever and other audiobooks are discounted. I buy cheaper books/shows and save my credits for more expensive ones.
The app is great, the instant gratification is phenomenal. You can download previously purchased books from the cloud, or get new ones.
I have a whole homepage on my phone dedicated to various audiobook players.
Now I just need to figure out the perfect bluetooth speaker situation (one that can rival my little Creative speaker). Any ideas? Anyone else use/love Audible?