Sunday August 20, 2006 NetBeans 6.0 Milestone 2 build contains Floating windows feature. A window (TopComponent) can be undocked by dragging the window's title bar outside the NetBeans IDE. UI specification is available here. The specifacation also coontans few flash demos. For examle :
The feauture is also part of NetBeans platform. If you want to use it in your rich-client applications on top of the NetBeans Platform you need to rebuild it against NetBeans 6.0 M2 platform. I tried it for Paint Application tutorial. Screenshot is below.