It’s the one they announced with iOS9.
Tag your content, slice it dice it, thin it.
//
Also, as far as other questions were concerned - you’re supposed to use CloudKit which is fundamentally different to iCloud as you can access CloudKit platform agnostic outside the Apple World. Only small amounts of data can get saved to iClouds Key/Value store (up to 1mb).
So you can build your game across a wide array of platforms and retain access to your saved states via CloudKit.
One thing, not often enough tales about - you MUST make your game 100% compatible with the AppleTV remote.
You can offer additional support for an external controller, but out of the box the game must be fully playable utilising the remote Apple provides the customer with.
And so far I haven’t seen anything that indicates you can incorporate iAd into your games, which may or may not translate into a general ban of ad networks. Just keep that in mind before you fill your excel sheet with super awesome ad impression stats. It’s a typical Apple issue - if it’s not explicitly encouraged it’s often implicitly disallowed.
Since many (of you) provide leaderboards via (different) web technology - tvOS provides NO web !!!view!!! support whatsoever. NO.Support.What.So.Ever.
You can feed data from the web into your game, obviously, but you can’t just pull up a Safari View Controller for formatting & display.
I’ll have my devKit early next week - if there’s anything any of you wants to get tested, let me know, I’ll try to fit it in.