Reseach In Motion has released the BlackBerry Native SDK 2.1 beta for Linux users! RIM has already released the BlackBerry Native SDK 2.1 for Windows and Mac users for they have officially released the beta for Linux!
RIM has made significant progress with the GitHub open source platform. Open Source is pretty solid development platform on the BlackBerry PlayBook, and now RIM has opened up the Quake3 Engine Port as well as the source code to developers by making it opensource making things more useful and easier using the new framework.
A new version of the BlackBerry® PlayBook™ OS v2.0 Developer Beta is now available for developers to test their applications on the BlackBerry® PlayBook™ tablet. The Developer Beta contains support for the: Runtime for Android apps Adobe AIR 3.0 WebWorks Native API 2.0