The new Cumulative Update 2 for OpsMgr 2007 R2 has been released just before this weekend.
You can find the download at the download center:
http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=61714687-668a-46e4-b127-ad8519594351
A description of the rollup can be found at http://support.microsoft.com/kb/979257.
Basically the CU contains both CU1 and CU2 updates.
It brings certain files to a version 6.1.7221.15
As always it is good to read the hotfix description and installation guidelines. Follow the usual procedure for deploying these kind of updates.
Kevin Holman already deployed it in his test environment and lists steps and things to keep in mind. My test environment is going to go for it right after I finish writing this.
Good luck!
Bob Cornelissen