Quite a few upsides.
There are a few clear precedents where Apple held a feature back in the EU, then shipped later and/or exposed a path others could plug into:
Apple Intelligence: Announced as “not at launch” in the EU in 2024, then rolled out to EU users with iOS 18.4 in spring 2025 (most features). One carve-out remains: Live Translation with AirPods
NFC access for third-party wallets (HCE): After an EU antitrust case, Apple committed to open iPhone NFC (“tap-to-pay”) via Host Card Emulation, let users set a default non-Apple wallet, support Field Detect/Double-click flows, etc., so a genuine “build a platform others can plug into.” The Commission made these commitments legally binding for 10 years.
With iOS 17.4 Apple created EU-only entitlements for non-WebKit engines (e.g., full Chromium/Gecko), so browser makers can ship their own engines on iPhone/iPad in the EU.
Home-screen web apps (PWAs) reversal: Apple initially said PWAs would go away in the EU for 17.4, then reversed and kept them—implemented on WebKit with the usual security model.
Alternative app distribution (marketplaces + web distribution): In response to the DMA, Apple shipped EU-only APIs/entitlements for third-party app marketplaces and later web distribution (direct from developer sites) with notarization, installation, backup/restore hooks, etc.
Tap to Pay on iPhone (SoftPOS): Apple’s merchant “no extra hardware” payments feature expanded across EU countries and is designed for platforms like Adyen/Stripe/Mollie to integrate via SDKs
The fact is adapting a service to provide and support a generic API for the long term that others can hook into is extra work, compared to a private API tailored to their own hardware and that they can change whenever they like. It may be they could provide this as an open service in future.
On the other hand, what is to prevent another ear bud manufacturer writing an iPhone app their ear buds connects to that provides translation? Is this really a hardware feature in the phone? If it’s just software at the phone end, as long as other manufacturers have the feature access to implement this themselves, surely that’s their problem? Why should apple offer translation software as a service to other companies for free? I can see the argument for hardware but not software that others could implement themselves on iPhones.
None of those are new features out since the DMA.
The only one clearly DMA related with EU specific unlocks are:
* app store
* browser engines
The DMA could have been just an app store regulation. It seems to have had its intended effect there. Very very unproven outside of it. At best you've shown no harm other than delay in some areas.
I'm assuming NFC lawsuits are separate from the DMA but could be mistaken. But in any event NFC payments already existed and aren't a new feature apple decided to release under the DMA.