It would be interesting if they made a full desktop PC, especially as transparent PC cases are already a big thing, so not sure what could be done differently.
In terms of the OS though, having everything working together seamlessly would be great - being able to access everything on your phone via your PC and vice versa (PC access on phone) without having to download any extra software or have to pair the devices would be a top feature for me. I saw an advert for something like that recently but I don’t remember the brand. I know Carl mentioned about their ecosystem so hopefully we’ll see something like this in future.