Add support for the Full Screen feature of OS X Lion.
Alex Blewitt wrote the Eclipse FullScreen enabler for OSX plugin which adds such functionality to Eclipse.
It's Open Source, released under the Eclipse Public License.
Source code is available here: https://github.com/bandlem/Fullscreen
Implementation details are available here: http://alblue.bandlem.com/2011/07/full-screen-support-for-eclipse-on-osx.html