TV Go and TV Control are available on Android now.
TV Control is available on iOS, and TV Go is here
https://itunes.apple.com/gb/app/virg...o/id1279877804 (for some reason doesn't show up in the App Store properly yet)
An app for Windows 10 will be available later today
TV Control for Amazon devices will be available later today.
Browser support is available for IE, Edge and Safari. Chrome and Firefox support should be available next week.