Or at least the frame capping part of it. As a cpu-level fps limiter, it is one of the best external ways to limit fps, and it can be done to games currently running as well. It seems like it would be a perfect fit for a feature built into Steam, which is one of the biggest places to game on PC. Through Steam's big picture mode you can already edit a game's controller config on a game-by-game basis while in that game, so it would be amazing to be able to just shift+tab or hit the middle button on a controller and be able to select an option to set an fps cap (or disable) whilst in-game still, and without having to manually add games or have some limiter always on in the background. Well, that's just my opinion, anyway. Would bring easier frame capping options to more people.