I was just pointed to Flings by the VMware support team.
These apps and tools build by VMware engineers are great and already found my favorite for vCloud director.
Lctree - http://labs.vmware.com/flings/lctree
This tool is designed for the visualization of linked clone VM trees created by VMware vCloud Director when using fast provisioning.
I managed Lab Manager before and always found the build in context view feature useful to show the relationship and dependencies between virtual machines.
This helped me a lot in finding the information about shadow copies in our environment as well as the visualizing the chain length and make decisions on when to consolidate.