As part of their warm-up for the Game Developers Conference, Valve have rolled out two new features on Steam today, one for players and one for developers. For those playing games instead of making them, Steam Link is now officially usable outside of home networks, albeit in open beta. Anyone with home streaming set up from their PC and either a Steam Link box or app elsewhere can play their games on the go. Just don’t go expecting instant control response on action games. For developers, the full Steam networking API and infrastructure (as used by CS:GO and Dota 2) is now free and open to all.