Get it while it's hot.
http://www.youtube.com/watch?v=4b29jUoqHu4
You select the currently active game it seems like here:
Then it loads full screen (or unsuspends? Developer decide on fullscreen images for these scenarios?)
and end ups in the game:
While you're in the game you press the Guide button the game continues to play:
More pics:
http://www.youtube.com/watch?v=4b29jUoqHu4
You select the currently active game it seems like here:
Then it loads full screen (or unsuspends? Developer decide on fullscreen images for these scenarios?)
and end ups in the game:
While you're in the game you press the Guide button the game continues to play:
(Which allows you to do other stuff in the XB1 OS when waiting in a match making lobby for example. Assuming there aren't special cases for networking that disable this multi-tasking.)
More pics: