Finally VMware’s own vSphere blog has been updated with a summary of what’s new in vSphere 5.5 and vCloud Director 5.5….
Pretty comprehensive list of what’s new!
http://blogs.vmware.com/vsphere/2013/09/a-summary-of-whats-new-in-vsphere-5-5.html
http://blogs.vmware.com/vsphere/2013/09/a-summary-of-whats-new-in-vcloud-director-5-5.html