cvp: yes, if windows based or not is not so important. Thats just the kind of setup, that I have in mind. More important is the connection between the different devices.
An example for a game that uses this setup is a simple card game. You play a card from your android device and it appears instantly on the big screen for everyone else visible.
Your suggestion seems to be a slow variant (without testing, just how I think it works), but also possible for other variants I have in mind.
So my new question: Is your suggestion fast enough or is there an other option?