I could not see any netflow data decoders, to provide more meaning dashboards, eg. MAC address to hardware manufacturer and platform range - (iPads, iPos, iPhones, other smart phones or tablets, etc) - ability to link IP addresses to site-subnet references, etc.
Are any there but not clearly visible?
Hi, there is a Splunk app called "Splunk for Netflow". I have not used it myself, but perhaps that might help you.
http://splunk-base.splunk.com/apps/22328/splunk-for-netflow
You could always contact the author of the app and kindly suggest improvements, if it does not yet suit your needs.
/kristian