I just saw this, thought it was sort of cool, and wanted to share it with you.
You may have need, from time to time, to export the Storage Map view in the vSphere client to a format which can be used in reports, etc. It appears that the Storage Map may be exported to a Windows EMF (Enhanced Metadata Format). This format can then be imported into Visio:
Useful if you ever need to do that kind of thing.