There's been a couple of questions relating to devkits, and console development details. Specifically, one asking What comes with a SDK, what language is used in an unreleased console, and alternatives to using a devkit. As brought up in chat, many of these questions cannot be answered without breaking an NDA, and if you have the devkit already, there's better (and legally safer) places to ask questions other than gamedev.SE.
To quote Josh Petrie's comment from chat: "Most of the time I feel people ask because they want to "copy the pros" feeling that that is useful, but not understanding that professionals and hobbyists have wildly different needs. Or they want to "eventually port" their games." The in-chat discussion begins here.