Can anyone concisely explain what this fine is for, and also why the same wouldn't apply to Apple for iOS? It seems to be a rehash of the issue that Microsoft faced when it only gave you Internet Explorer on install. But iOS comes with only Safari on install, and forces you to use Apple's various apps - how is this any different?
The fact is that Apple controls enough of the users that everybody wants that they have at least as much influence as Google does in mobile. That they've chosen to protect their fat profit margins and accumulate the largest pile of corporate cash in history while ignoring customers that can't afford premium devices should not insulate them from similar scrutiny.
If the EU wants to preserve any credibility on these issues they should take a hard look at Apple's refusal to allow other browser engines on iOS.