Slacker Radio for BlackBerry PlayBook has been updated to v1.2.12 This is a very small version jump so I am not surprised no change log appears to be available. More than likely some smalll bug fixes.  If you notice anything new let us know.

Details: Listen to all of your favorite personalized Slacker stations on your BlackBerry® PlayBook™ for free! You can listen to over 140 stations programmed by music experts or search for song and artist based stations right from your BlackBerry® PlayBook™. You will have detailed artist biographies, full album reviews and more.

Features:
• Unlimited free music on your PlayBook™
• Over 140 expert-programmed genre stations
• Tabbed info view for lyrics, reviews and biographies
• High-quality stereo sound over any connection
• Music plays even while using other applications
• Create custom stations based on artists or songs
• View album art and photos
• Rate songs as favorites
• Ban the songs and artists you don’t like

Price Free

Slacker Radio for BlackBerry PlayBook in App World Here.