Is it possible to build NetBeans RCP applications with IntelliJ IDEA?
Yes it is possible, however you will not get the same kind of support you would get from NetBeans (wizards, menu actions, etc.). Currently there is no tutorial about this topic but you can check out the Eclipse RCP tutorial, which explains concepts related to building RCP applications with IntelliJ IDEA. Although this tutorial is targeted to Eclipse RCP developers you can still learn about necessary steps if you want to build NetBeans platform based applications in IDEA. Also look at this article on DZone about building NetBeans-platform based applications with IntelliJ IDEA.