(Image credit: Tom's Hardware) When we reviewed the Steam Controller , we had the chance to sit down with Valve and talk about our experiences using it and ask questions about it. We talked with Valve programmer Pierre-Loup Griffais and Steve Cardinali, a mechanical engineer on the Steam Controller team, to talk more about the controller's design, the fact that it works only with Steam, and to learn more about how the company is dealing with latency, among many other topics. We published excerpts from this interview in a story alongside the review. Here, we're presenting the full transcript of our conversation. Article continues below Andrew E. Freedman, Tom's Hardware : So I've been playing around with the Steam Controller. I have questions about why you made some of the choices you did. I also have some questions about the Steam philosophy behind the controller. So I want to get into all those. I think the first thing is, why is now the time to make a controller again?…