A feature that was often requested by Linux gamers, was a way for us to show developers there's a demand for a port. Valve has delivered something interesting to help. Although it does have a small caveat, it's only if you pick one platform in your Steam settings.
We have made changes to the wishlist aiming to improve developers' visibility of any interest in their title coming from Steam users playing on platforms they're not currently targeting.
If a user only has one platform filter selected in their Steam store preferences, adding a game to their wishlist will result in it being specially reported to the developer in a new platform-specific breakdown of the wishlist report:
Currently, Steam has this feature some of you might be familiar with (set it here):
Now they're actually making some more use of it, so developers will end up seeing something like this:
A simple change overall, but one that could end up proving quite interesting for developers. I don't imagine this suddenly moving mountains (being realistic here), but we've long needed something official like this to help things along a bit more.
More changes like this, to help developers decide can only be a good thing for Linux/SteamOS gaming.