Does it really make more sense to create _another_ OS, rather than extending OS X or iOS? It seems like they're doing that anyway seeing as games etc will work "across all devices"...
Initial reports suggested that this 'new' tvOS is based on iOS 9, which makes sense seeing as it's using a lot of iOS API's and frameworks
There looks like there is a TVMLKit which looks like AppKit and UIKit. https://developer.apple.com/library/prerelease/tvos/releasen...
- You can use all the iOS Frameworks you know and like to build/port your full-fledged apps for apple TV
- You can build simple apps ("ideal for streaming media") with XML/JS.
This means everybody can hack something together to get their online video onto the apple TV (video bloggers, local tv stations etc), but obviously for more complex stuff (e.g. games) you'd use the usual frameworks from iOS.