http://communities.vmware.com has a interesting script for linked clones.
http://communities.vmware.com/docs/DOC-9202
“
This script allows users to create linked cloned virtual machine(s) from a master (or golden) virtual machine. Clones may be stored on any type of datastore (LOCAL, SAN, NFS) that is presented to the ESXi host. The script is very capable in deploying a large VDI environment in a relatively short amount of time.
Compatiable with:
VMware ESXi 3.5 Installable Update 3
VMware ESXi 3.5 Installable Update 2
VMware ESXi 3.5 Installable Update 1
VMware ESXi 3.5 Installable
The only supported case is the “Default case” in ghetto-esx-linked-clones.sh.
“
http://communities.vmware.com/servlet/JiveServlet/download/9202-1-17089/ghetto-esxi-linked-clones.sh