The BlackBerry Tablet OS SDK for Adobe AIR will enable users to create applications for the BlackBerry PlayBook. The SDK allows you to create Adobe AIR applications that engage BlackBerry PlayBook users who are attracted to the possibilties that are offered by tablet computing on the BlackBerry Application Platform. 
The SDK installs a plug-in for Adobe Flash Builder 4. The plug-in allows you to create Adobe ActionScript projects intended to run on the Adobe AIR runtime environment on the BlackBerry PlayBook. A BlackBerry Tablet Simulator is available as a separate download so that you can test the appearance and functionality of your applications.
BlackBerry Tablet OS key details:
- Based on the proven QNX Neutrino RTOS, which powers mission-critical systems on the space station, government defense systems, life-saving medical devices and millions of in-car systems 
- Reliable, high-performance kernel engineered for multi-core hardware 
- Multi-threaded POSIX OS (Portable Operating System for Unix) for true multitasking 
- Built from the ground up to run WebKit and Adobe Flash 
- Built with the security, efficiency and seamless connectivity from the ground up you’d expect from RIM 

Requirements:
· Adobe AIR SDK 2.5.
· Intel Pentium 4 or AMD Athlon Desktop Processor 2 GHz or faster
· 1 GB or more available hard drive space
· 2 GB RAM or more
· Computer monitor with resolution of 1024 x 768 or higher

What's New in This Release:
APIs:
· Various additions and improvements have been made to the API.
· The ScrollPane class now includes the following properties: scrollBarColor, scrollBarAlpha and scrollBarOffset.
· The DropDown class has two new methods, open() and close(). The button and list constants have been added to allow further control over these properties.
· The ISkin interface has a new method, edgeMetrics.
· List, TitleList, SectionTitleList, and ScrollPane objects now have shadows to indicate more content. The enableShadows() method was added to these classes to control the display of the shadows.
· The blackberry-debugtokenrequest command has been added.
· The PickerList.mouseEnabled method now has the same functionality as the removed PickerList.isActive method.New
Application signing:
· You can now use proxy settings in the signing tools.
Packaging improvements:
· The following improvements have been made to the packaging tool
· The packaging tool can now read the command line arguments from a ...