I didn't think about modular screens, but that's a very interesting idea to me. I could see a system where I would have the core chip or a module that I could insert into other devices.

Let's say I'm at work for example. When I go into a meeting, instead of plugging in a computer I could slide out a presentation module and cast my presentation to the screen. Then using my phone I could view the next slide and control the presentation.

From a sci-fi point of view I really like this idea. I could imagine a world where everyone has their "core device" and they interact with the world by attaching their physical modules to different terminals. If a group of friends and I went to a bar, for example, we could plug into a table to hold it while we go dance or get drinks and the servers would know who we are and what we have on our tabs.

Of course, someone would be murdered, their core device would wind up in an inexplicable location, and a sibling they haven't seen in years would follow the strings to learn the deep dark secrets hidden in the corners of a core driven world. It could be interesting.