I don't believe they have a compatible version for the PlayBook/BB10. You would probably have to ask them when/if they plan on making it available on PlayBook/BB10. Right now I only know Scoreloop is available but that is because RIM owns Scoreloop and made a version for PlayBook/BB10.
---Spends time in #blackberrydev on freenode (IRC)---- Three simple rules: 1. Please use the search bar before making new posts. 2. "Like" posts that you find helpful. 3. If a solution has been found for your post, mark it as solved. --I code too much. Well, too bad.