VMDK Recovery Tool with 3.5 update 3

I was taking a look at some of the release notes for esx 3.5 update 3 and noticed a VMDK recovery tool. This is experimental and has tons of warnings, but in some cases it may work for rudimentary backup, and looks to foreshadow some possible backup features to come. There is a script intended to help customers to recover VMFS and VMDK data stores from accidental deletion of a data store or physical disk corruption. Basically looks to be a very basic backup and recovery functionality. Check out this KB link it goes through an example:
http://kb.vmware.com/selfservice/microsites/search.do?language=en_US&cmd=displayKC&externalId=1007243