Autodesk Labs

At http://labs.autodesk.com you can freely download some of the new Autodesk programs, before they are released. It is some kind of public beta-testing program.
At the moment, you can access:
- Autodesk Vault Mirror Beta
- Project Freewheel Technology Preview
- Google Earth Extension Beta
- Autodesk DGNV8 Translator Beta
but expect new programs to enter the labs.