[Jtsummers]

The best outcome for MS would be if the Apple App Store itself were to become one of several app stores on iOS devices. Then MS could build out the pipeline (largely already possess it) to have their own MS App Store on iOS and Android, paired with their development tools which, really, are topnotch. They wouldn't necessarily need to undercut Apple's percentage, but just reduce friction for development and deployment across OSes.

[robertlagrant]

You can already have multiple app stores on Android. They could've done that years ago.

[Jtsummers]

No doubt. I'm just saying what would benefit them. They already have the infrastructure for developing cross-platform software. If this suit, taken to its extreme, breaks Apple's hold on the iOS app store then MS would benefit greatly by having their own app store which worked across their OS and the two primary mobile OSes.

As I understand it, though, there's little motivation to sell software on Android versus iOS right now due to the relative lack of sales (that is, iOS users consistently spend more an applications than Android users). I doubt there'd be much incentive to invest in an app store infrastructure on Android right now given the poor expected return (going off of my recollection, Amazon's app store has not done particularly well, what would differentiate MS's from Amazon's right now?). But if you could have the same app store on both iOS and Android, you'd place yourself in a much more compelling position (for users and developers).

And since iOS users have demonstrated a willingness to part with their money for software, it's a better target for companies like MS, Steam, Epic, and others than Android (or Android alone).