Microsoft release a CTP of the Physical to Virtual Migration Toolkit -- designed to assist organizations in their migrations from Configuration Manager 2007, to Configuration Manager 2012.
This primary scenario this tool assists is situations where remote Configuration Manager 2007 SP2 site servers need to be retained during the side-by-side migration process to Configuration Manager 2012. There may be other applications of the tool.
The product enables customers to convert Configuration Manager 2007 site servers to Virtual Machines (VHD) files and restage the server as a Hyper-V host with the created VHD. By converting the existing site servers into VMs at remote locations, customers can re-use the same hardware (given sufficient resources) to stand-up a Configuration Manager 2012 site server and perform the side-by-side migration.
SCCM Physical to Virtual Migration Toolkit product is a separate installer, and is released separately from the Configuration Manager 2012 product as it is run against the existing ConfigMgr 2007 product.
All pre-release versions are made available through the Connect website which enables feedback directly to the P2V migration toolkit development team during the Community Technology Preview phase.