Hi guys,
for all of you this may be of interest: there is a new book available, which contains a lot of stuff about virtualization. It is not only VMware, but also Hyper-V, Xen and Sun Solaris Zones. Unfortunately the book is only available in german.
It contains a good overview about each solution and how to use the virtualization solution for your SAP environment.
The book can be ordered on amazon, bol etc.
Regards
André