As far as I'm concerned, there is no way this could be a good substitute to a Livermorium and I hope Chen will soon soon share his plans for 2018 regarding this device.

However, I must admit that the video actually surprised me. I thought this would be totally useless, but in fact I think the form factor is kinda interesting. Of course it's not as comfortable as a single screen with the same screen estate due to the bezel that gets in the way, but it's a phone and it fits in a pocket, while still providing the advantages of a tablet (which in my opinion are not really obvious, except from the extra comfort when reading content). For web use, I wouldn't mind an horizontal bezel too much, and it's a non issue when multi-tasking with two applications side by side. A double-sided hinge would be nice too, so that the clam shell could be closed with screens facing inwards in those situations when you have only one pocket but also need to carry some coins/keys/whatever, thereby reducing the need for horrendous screen protectors.

In the end, the screen management software is never going to work with something else than Android unfortunately, so that will be a no-go for me.