ITIL v3 CMDB Redefined
In case you haven't followed the ITIL v3 news, the concepts of a CMDB have been "corrected". No longer is the definition so rigid as to say a single database for a CMDB. There are many trusted sources for configuration information within a company and the goal is to federate those up to a "knowledge management" system.
Hank Marquis has an excellent article in the DITY newsletter describing the changes.