532 Dollar Chromcast that supports Apple and Windows devices

[disolitude]

There are countless Miracast adapters that accomplish the same thing as Chromecast and support Android, Windows 8 and Windows Phone 8.1 devices.

For example:
http://www.asus.com/Tablet_Mobile_Accessories/ASUS_Miracast_Dongle/
http://the-gadgeteer.com/2014/02/09/belkin-miracast-video-adapter-review/

Miracast gives you the true freedom of mirroring your smartphone/tablet and extending your desktop with Windows 8 without having to worry about app support like Chromecast.