>> app developers can now bring their own commerce into our Store and keep 100% of the revenue – Microsoft takes nothing. App developers can still use our commerce with competitive revenue share of 85/15

> This is great. That's how it s done

It can't go on, though. Why won't every developer turn their app "free" and use Stripe or something to shave even more off the commerce fees? Meanwhile Microsoft eats hosting/maintenance/development on the store for zero return. We saw why Apple went the IAP route even if it's unpopular among developers and the fees could afford to be reduced.