Jay Pandit started a discussion about flavor metrics. http://scn.sap.com/thread/3769149
Our response was that this feature is in our backlog.
The product team is interested in hearing your requirements for tracking flavor usage.
Also, if you have implemented this in some way in your environment.
Please add your requirements or how you track usage to this discussion or email us your wish list. Also, let us know if you would like to test pre-release functionality when we have something (planned for later this year).
Thanks and regards,
Peter