[FatalLogic]

>Why would game/platform creators do a ton of work so they could make less money?

I know, right? Or to look at another similar situation: why would Verizon, China Mobile, T-Mobile, and AT&T all make their voice/data networks interoperable?

Obviously, they wouldn't chose to do that.

[JohnFen]

They do that because of regulation, not because they want to.

[wpietri]

Exactly. The early history of telephone systems was rife with refusal to interconnect.

And the analogy is terrible because the whole purpose of telephones is interconnection; the value is in the size of the network. But from the consumer perspective, portability for music purchases or game assets is at best a secondary concern.