Jon Hall from the Certification team at VMware has confirmed today that holders of the VCP4 certification will get a new license for VMware Workstation 7. There is a process that has to be finished internally within VMware, then the licenses will be released.
VCP3 holders will still receive a license for VMware Workstation 6, as as always been the case with VCP3.
From: http://vmwaretraining.blogspot.com/2009/11/vcp4-holders-will-get-workstation-7.html
