The interactive polling stuff is neat, though it seems like it would occupy a lot more time in a presentation than the old-fashioned &quot;show of hands&quot; it&#x27;s replacing (given the time an audience would need to pull out their phones and try to scan the QR &#x2F; type the URL &#x2F; send the SMS).<p>The on-device view of the current and upcoming slides (as well as speaker notes, and maybe even drawing) are also built into the Google Slides app&#x27;s UI when you are casting to a Chromecast.