Hey, look at this: Yet another YouTube app overhaul, which features a bunch of … features. See if you can guess what’s most important about the new Xbox app from Google’s perspective, via a PR email YouTube sent out Tuesday morning: “Today we updated the YouTube app on Xbox, making it up to 5X faster and adding channels with official music videos. Xbox is the latest game console app bringing a full YouTube experience, following the launch this month of our PS3 app. With this new app, viewers have an improved YouTube experience, and YouTube creators have a better platform to build audiences for their channels.” Read the full story at All Things D.