nothing has really changed here, except that it's now unbelievably easy to get access to great tools for making games. there's nothing stopping anyone from making these games for non-PC platforms, like it's always been
what the Valve guy said about PC being the "premiere content authoring platform" is pretty meaningless. it always has been, and probably will always be. the alternative would be creating games on a console
Yeah, I thought that statement was a bit backwards.
I don't know what other platforms there even are for creating content, besides perhaps tablets/phones for tablet/phone games.
It's not like there's ever really been people trying to make games
from the Xbox, Wii or Playstation. Of course everyone uses PC's to make games, because they've got the software and hardware to do that. I certainly wouldn't want to code anything on a console with it's digital keyboard.