People said exactly the same thing about Miracast in 2013 and 2012. We still aren't anywhere with it. It is more broken than it is working, it is a giant mess.
> The Chromecast comparison is really a bad one - yes you can tabcast
You can fullscreen cast.
> but really it is designed around a "send this URL to play" experience which is much much easier to accomplish than real-time streaming.
Except for the tab casting and full screen casting..?
> For the real-time streaming, you only have a single sink device to worry about and it only works on desktops (for now).
You're strangely contradicting yourself. First you acknowledge that tab casting is a thing,then you pretend that tab casting isn't something it does and use that as justification for Miracast's superiority? Very confusing.
Also "only have a single sink device" is total gibberish. Even assuming the word "sync" it is still nonsense, both Miracast and Chromecast only support a single device on either end (sender and receiver).
PS - Chromecast works with other devices. It isn't just desktops. People already made apps that could send a full Android "desktop" to the Chromecast back in the early days before Google killed it with an update. I'm sure it will return with the release of this SDK.
> Your surface area is much smaller, so of course interop is going to be better.
It is an identical surface area between the two.