asking for trouble
I'm not much of a gamer but the approach they seem to be taking looks like trouble from a user experience standpoint. One of the big advantages of the consoles seem to be since they are all the same the games will work the same way on all of them (or they should). Having such a varied selection of hardware seems to invite similar troubles that impact PC gaming on the Steambox platform as well, driver quality, compatibility with Linux (as a Linux desktop user for more than 15 years now I have plenty of first hand experience) etc.....
I bought every Loki game that was ever released even if I didn't play 3/4ths of them in a poor attempt to show my support. Obviously only to be burned later by Linux constantly breaking compatibility.
Add to that seems like they will be pretty reliant upon streaming games from a Windows PC anyways due to lack of good, recent, native games on Linux(even on Steam - from what I've read).
It just seems to me they are setting themselves up for a whole lot of .....nothing (relative to PS4/XBone), purely out of fear that MS wants to build an app store for windows and force everyone to use it and give them a major cut of the revenues. So instead of customers being locked into the windows app store, they get locked into another(Steam) - sounds like a good deal to me.
Doesn't matter to me either way I play MAYBE a half dozen hours/month of games.