Great question @richardhyland 
Since (as I understand it) the Periscopes are served up by cards, that would require special cards of this kind to become renderable. Saying that, we’re also looking at API and display options around polls (also cards), and of course Fabric uses the API too, so this is not all beyond any hope! I will feed back that this has been requested, and @bonnell and I will be sure to keep an eye on this, but again, no firm ETA or announcement here today.
