OpenBlueSky is a set of components for the NetBeans Platform.
What is PlatformX? A lot of people build applications with the NetBeans RCP/Platform. There should be a place where the general-purpose things people write can go live and be of benefit to others. A peer-maintained repository of useful NetBeans modules that, while not necessarily useful in an IDE, are very useful in an RCP application. This is PlatformX.