Hi!
I might sound boring now but I´d keep screen sharing devices that doesn´t move around connected with wire. Streaming something from a wireless client to a wireless device and with people joined in via collaboration wirelessly will consume so much airtime.
With that said, if you don´t have the possibility to connect them with a wire, or just don´t want to, you can definately make it work all wireless with proper wifi design.
Cheers,