[siphr]

The success and effectiveness of the console, I believe, is dictated by the following statement:

"Watch for announcements in the coming weeks about all the AAA titles coming natively to SteamOS in 2014. Access the full Steam catalog of over nearly 3000 games and desktop software titles via in-home streaming."

To me this suggests that they are actively trying to get developers to port and they have had some success. Also I believe that a lot of developers will not port and to handle those cases they've introduced the home streaming functionality so that you could stream your windows game to the steam box via a windows steam client running somewhere.