Here is something interesting that last time (July 2008), I did this blog post there were more OpsMgr certified people than ConfigMgr. Well as of April 9, 2009 there are more Certified ConfigMgr People than Opsmgr.
Microsoft System Center Configuration Manager 2007: Configuration 2,166
Microsoft System Center Operations Manager 2007: Configuration 1,545
Microsoft System Center Virtual Machine Manager 2008, Configuration 400
BTW, here are the number from April 8 2008