At its self-named conference
earlier today, VMware announced
it has released most of its VMware Tools as open source software
This is part of its commitment to the Open Virtual Machine Tools project.
VMware Tools consist of guest operating system virtualization components that strengthen management capabilities over VMware machines, and improve overall performance. They can now be incorporated into offerings by other open source vendors.
The source code for the tools is now available at open-vm-tools.sourceforge.net