PlayBook OS 2.0 supports a lot of cool features, including a unified inbox, social media integration, and thousands of new apps. Not to be outdone, the team responsible for the PlayBook's browser have also upped the ante. In fact, the browser for OS 2.0 has become the top scoring tablet browser on html5test.com.
The PlayBook browser achieves a score of 354. The closest competitor, Firefox Mobile 10, comes in at 315.
To learn more about the HTML5 test and how scores are calculated, click here.