Apple's last two software platforms, tvOS and watchOS, were set up for failure — tvOS with the 200MB app size limit and crummy input which pushed game devs away, and watchOS with a stripped down and ultimately useless WatchKit UI wrapper masking the more-powerful UIKit underneath. Has Apple learned from this for its headset? It just might have; the consistent rumor about it running existing iPadOS apps from the App Store is a telling indicator that they intend to build on previous successes
