A SONOS controller may be on the way
I know that the only app that I sorely miss on my Playbook is a Sonos Controller app. Well, it seems that Tiggit is giving it a go:
Blackberry Playbook: New OS - please make Sonos' Android app available! - Page 4 - Sonos Forums
You may know Tiggit from his Sonos app for BBOS devices:
tiggit controller - the Sonos Controller for BlackBerry
He is essentially taking an Android based controller that he had worked on previously (but never published due to Sonos eventually releasing their own app), and is porting that to work with the Playbook's android app player. What he has working so far works not only on the Playbook, but BB10 as well.
Just come across this ...looks very promising
Room Tunes - Home
there is a comment saying it will also work for playbook so fingers crossed:)