Yeah, that’s what I was referring to. It’s an interesting design choice: they could have made it a block with a clamp system so it would really fit almost any phone (instead of using phone specific shape. A quick release is a must, as no-one would walk around with that (even if they’d take it with to the beach or something).
Aaand… the more I think about it, a block like that would be easy enough to make. That system uses pretty standard parts and the process is simple to create (as long as I can make it water tight and on that I trust myself more that the item on the video). But for a more sophisticated version, this would be… cool 
… to have built in on a stand/hub for convergence/desktop use. Even useful, maybe, if workload is constantly high (really, any kind of additional cooling probably would be a good addition).