If anyone (like me) is interested in the vCloud Air I’d recommend doing these labs, its a good way to get an insight and so practice.
HOL-HBD-1481 – vCloud Air – Jump Start for vSphere Admins
HOL-HBD-1482 – vCloud Air – Networking & Security
HOL-HBD-1483 – vCloud Air – Manage Your Cloud
Link to the labs – http://labs.hol.vmware.com/