Long time no blog – I have been working lately on the System Center Service Provider Foundation (SPF), which is part of System Center 2012 SP1
SPF provides a hosted IaaS cloud REST OData API for System Center adding multitenancy and the ability to manage across multiple System Center instances. My colleague John Ballard wrote an introductory post on the Orchestrator blog about SPF here.
For a demo and overview discussion of SPF, here is a Channel 9 interview I did last week at TechEd North America.