RIM Playbook was demoed extensively in this video to show what other tablets failed to do (iPad) or did not do well (Android) in those areas (Flash content).
In this video, it shows Playbook seamlessly playing HTML5 and Flash content. Plus, it also shows that Facebook can actually be used normally (as in a desktop/laptop) with full function to Chat or Flash games. Those addicted to Flash games on Facebook would be delighted.
Hopefully, they can solve their battery issue mentioned by Engadget a few days ago. Right now, lets watch the demo.