Just to followup on this. I did find a synopsis of the episode on marksfriggin.com which is pretty detailed. There is no mention of INTERACTIVE video but Howard did discuss the app several times and does indeed appear enthusiastic about it. They are constantly updating it.
You can get a free preview session and listen to the episode on the SiriusXM. So the potential for nFusz involvement still remains especially in light of the tweets several months ago.