Sony's online service, PS3 Home, has been met with much praise, but its competitors claim it's nothing new.
Last week Nintendo told CVG that PS3 Home "is an example of Sony's 'Mii-too' approach", claiming that Miyamoto decided against creating such a service years ago.
Miyamoto has also been quoted as saying: "We've been working on this idea of twenty years and never been able to turn it into much of anything," reports Jolt.
"The view was it would be very popular with creative artists. But the view was it was too complicated and would make most players frustrated," commented Miyamoto.
At last week's GDC a Microsoft spokesperson told CVG: "I think they've definitely taken some concepts that we originated like achievements, but I think they're pushing in a different direction and we've sort of fundamentally got two different approaches going on here.
"I think there's very much a vision that people see it and it looks cool but it's fundamentally separate from the games - or at least what they've shown so far. It's a cool world but it's like a little game by itself. Our approach is the other way around; it's that games are the centre and that's the star of the show, that's what people buy the console for."
We say what does it matter? PS3 Home looks awesome and it's great to have a round of consoles that each have their own distinct features.