Support for Cisco NBAR

This feature has been added to NTA 4.2.

Does anyone have the status of this moving to a production release?

All, NBAR2 and NTA Beta is ready. I would love to get your feedback so we can keep adding support for vendors and get statics on what protocol pack your devices have. Sign up here: Better application traffic visibility - NTA 4.2 Beta using NBAR2

any traction on this?

Good idea, but what I would be careful on is, Cisco NBAR has been infamous for miss-categorizing traffic.  If you look under the hood, most NBAR definitions (PLDMs) solely use port numbers for application recognition.  This includes NBAR2.  Historically, it isn't very good at detecting the network bad boy protocols that mascaraed under well known ports such as 80 and 443.  Don't get me wrong, NBAR2 is much improved from the original in accuracy and application library, but it just isn't updated enough to keep up with well crafted network abusing programs for gamers, P2P, and anonymizer applications. 

Are you running Flexible NetFlow and sending protocol identifications (using NBAR) within your export to NTA?  Obviously, this option doesn't require much on the Solarwinds side since you will be sending them the appropriate information rather than NTA trying to SNMP grab it from the appliance.

http://www.cisco.com/c/dam/en/us/td/docs/solutions/CVD/Aug2013/CVD-ApplicationMonitoringUsingNetFlowDesignGuide-AUG13.pdf