No specific info about version 20.0. Please visit the main page of Apache NetBeans on Mac Informer.
MSR Tools is a source code evolution analysis tool.
Visual CSS editor supporting any web framework and showing instant edit results.
It simplifies the download and installation of the Apache Flex SDK.
QDevelop is a development environment entirely dedicated to Qt4.
DocoaBrowser lets you browse and search Apple's Cocoa frameworks documentation.