hi,
Here Canadian Thomas outlines how you can access an external volume from a RIM Playbook using the apache server which ships with the mac:
I used the idea and set up my mac mini to allow my playbook access to my MyBookLive. I thought this was a pretty easy set up and it allowed me to play stored mp3s and videos. HD dragged a bit - probably too much wireless in the path and/or my mac mini is a bit underpowered.
steves_alias