Dashboard, that is. You've already seen the new Xbox 360 dashboard update right here and thousands of you have tried its flatter, faster interface for yourselves, but if you've missed out, it's looking like your Halloween candy bag may include a full-scale rollout. Xbox Live subscribers are getting the above message in their inboxes right now, indicating that November 1st will bring a service update of some sort, after which point "You will notice a change to the layout of the Xbox LIVE Dashboard, a