I have taught for years using UW&#x27;s Classroom Presenter software, hacked up to be more responsive and usable with a tablet and pen. So I&#x27;m fully on board with the concept.<p>But frankly, the execution seems lacking. The qrcode&#x2F;sms polling is fine, if you care about that sort of thing, but there are many similar and better solutions [1] out there. 
You can already mirror and do remote displays easily even with stock powerpoint&#x2F;ooffice&#x2F;keynote.<p>The one feature this and UW CP really bring is the annotation. In UW CP, especially my hacked version, the annotation tools are very good quality. You can use an active pen (e.g. wacomm digitizer on a Lenovo laptop&#x2F;tablet) for accurate writing and drawing, and it has very low latency response, pressure sensitive line width, etc. In software you can zoom slides, delete&#x2F;move annotations, change colors and pen types via a tablet-friendly palette. You can save your annotations and import them back into ppt as &quot;ink&quot; objects, and vice versa.<p>I don&#x27;t see any of that in the poster&#x27;s demo. The drawing is clunky, unresponsive, and looks bad. Can you imagine trying to write a note on a slide with that system?<p>Having worked on the guts of UW CP, I know that one of the hardest things was export&#x2F;import from powerpoint. It is <i>very</i> hard to get right, especially with build animations. Font size 24 doesn&#x27;t export correctly in many cases. Margins and objects shift and move slightly. Exporting can be very slow -- many seconds per slide, depending on complexity. Parsing the actual pptx files and replicating the actual look without using powerpoint APIs is essentially impossible.