We know that the BlackBerry Tablet OS built on QNX is a constant work in progress at RIM. I have heard from a few sources that RIM has almost daily OS builds coming out to employee devices. The thing is most users have only had a chance to play with the BlackBerry PlayBook Simulator which is VERY deceiving. For example, RIM recently updated the PlayBook simulator to include the browser with Flash support. The thing is if you try to go to a common Flash site like Facebooks flash games (think Farmville, etc)from the simulator it will crash. On the other hand I know many Facebook apps work like a charm on actual PlayBook devices.
I have yet to get to the source of why the browser on the simulator is not reflective of the actual device but from what I hear RIM is working on it. They even state the following in their release notes to developers:
The only reason I mention this is because I have had a few web/Flash developers ask me why the PlayBook browser sucked on Flash content. Just keep in mind the build RIM is offering us in the simulator is nowhere near the final product or even the OS they currently have on their own devices. RIM will be developing this baby until the last second and actually releasing an OS update that will load up the second you turn on the device when you buy it. So don’t fret if you are seeing quirks in the PlayBook simulator. Many of the issues have been fixed in recent builds and RIM plans on pushing out these OS updates without carrier intervention. Lets hope that stays true for the 3G and 4G variants!