According to Major Nelson, if you were one of the people who successfully applied to the preview program (and submitted your console ID), you may have already gotten the New Xbox Experience (go check now!) That post of his went up yesterday, November 17th – two days before the official launch. If you don’t see the prompt to download the update, sorry…you’ll have to wait until Wednesday like everyone else. But meanwhile, you can prepare for the update by prepping yourself on the install process. This video will show you the way. Or if you just want a refresher on what to expect, Sara at the Gamerscore blog has a summary of all the NXE vidoes and posts.