I love the Sonos system but I am really disappointed there is no support for bookmarks in audiobooks (and podcasts). I love listening to audiobooks and since I'm from Sweden Audible is not an option if I want to listen to Swedish audiobooks.
I buy my books in MP3 or on CD and make them real bookmarkable audiobooks in the .m4b-format with the program Audiobook Builder so they are not DRM-protected.
It's also annoying that I can't play the audiobooks I have on my iPhone in the Sonos app, I need to use the computer version.
So please Sonos, fix support for bookmarks in audiobook (and podcasts) so all your audiobook loving customer can bookmark their audiobooks. :)