AzrealMaximillion said:
Also, Steam's library lack titles from Japanese developers and Japanese developers develop games in a completely different way than Western devs do. Japanese games are built on the console for the console. Western games are built on the PC then put onto the console. The Steam Box will be at a major disadvantage by not having those titles as well as not having any exclusive games that wouldn't be on the PC anyways.
I seriously doubt that would be a major disadvantage at this point.
Japanese games don't carry nearly the same clout they did 10 years ago, as their relevancy has eroded away with Japan's waning interest in western gaming markets and increased focus on their domestic market (thank the recession for slashing the value of western currencies, and with it, Japan's export yields).
Sony may act as the best "bridge" for western markets; lightyears ahead of Nintendo, but it was Nintendo who made the biggest pile of money last generation, not Sony. While I don't see Nintendo repeating their accidental success with the WiiU, the success of the Wii and why it succeeded financially says an awful lot about the reduced relevance of Japanese games to mainstream western gaming.
More bluntly: Shitty, cheap Wii gimmick games made Nintendo more money than Sony's (generally) higher quality ports.
(thankfully, that success wasn't foolproof; when the Wii fell, it fell HARD. Check out Nintendo's losses from currency exchange and overproduction. Over production of, yup, Wii-crap and 3DS units.)
Summarily: I think you overestimate the value of Japanese games to the global market.
Apart from that, I don't see a "Steambox" filling any void left by Microsoft, since it would still have to reconcile the problems that M$'s initial Xbone offer had while competing with Steam.