We're making a list of all of the BlackBerry PlayBook questions you have and will work today on getting them answered, but in the meantime we recorded this little follow-up vid yesterday taking another look at some of the features and UI elements on the BlackBerry PlayBook.
Multitasking - RIM is really pushing true multitasking as one of the features that sets the PlayBook apart as a professional tablet. In a lot of the video demos you see a movie still running as you jump into another app. In the video above we see the PlayBook definitely has the horsepower to handle a bunch of open apps.
A BlackBerry experience with no Menu Key - BlackBerry Smartphone users live and die by the BlackBerry button, or menu key (the one to the left of the trackball/trackpad). That's where all of your menu options are that allow you do things beyond what you can see on the display. In the video above, we take a look how the new OS handles this. Suffice to say, it's a pure touchscreen experience. Option elements are either presented via a button, such as the edit pencil on the homescreen for when you want to re-arrange homescreen icons, or are swiped in, such as when you're in the web browser and want to jump between open tabs. It's definitely a different sort of BlackBerry experience.
Keep those questions coming in the comments... and we'll keep coming back with more answers!