Nothing restricts Apple from continuing to be this unified in their ecosystem. What the EU DMA tries to break, is Apple's "weaponization" of iOS to gain an unfair advantage in sales of accessories.
So if Apple (the product-company) requires changes in iOS to realize a new feature in an accessory product, the changes in iOS will have to be opened to accessory-competitors as well.
They would still be first-to-market with such new features (because they had a head-start in implementing and launching them with their accessory), they would just be facing competitors catching up over time like in every other balanced market.
So if Apple (the product-company) requires changes in iOS to realize a new feature in an accessory product, the changes in iOS will have to be opened to accessory-competitors as well.
They would still be first-to-market with such new features (because they had a head-start in implementing and launching them with their accessory), they would just be facing competitors catching up over time like in every other balanced market.