VMware published details on the available tracks to become a VMware Certified Professional on vSphere. Information can be found at VMware’s Certification portal. The picture below shows the available paths for certification. Current VCP’s on VI3 do not have to attend the VMware vSphere 4: What’s New class if they pass the exam before December 31, 2009.
The VMware vSphere 4: What’s New course lasts two days and will costs around € 1000,-
The exam will be available starting August 1, 2009 according to this post at ntpro.nl
More info on training and certification at http://vmwaretraining.blogspot.com/