This mod of Scratch (scratch.mit.edu) will add several new features, including an extensive plugin API.
It is currently developed by the Scratch user SJRCS_011.
A Virtual Machine Linux appliance (for Virtualbox). This Fedora Remix puts emphasis on Java based applications. Includes OpenOffice.org, OpenJDK, browser plug-ins (IcedTea), and popular Java based applications like Azureus/Vuze, jEdit, and more.