Microsoft have revealed new details about how Friends Lists will work on Xbox One, stating that although you'll be able to have cross-console entries between Xbox One and Xbox 360 there'll be no cross-generation console chat.
"[You can] see your friends on both systems, including their rich presence," said Marc Whitten, chief Xbox One platform architect. "My friends that are still on Xbox 360, for example, might see that I’m on Xbox One, playing Ryse. Since I can have more than 100 friends on Xbox One, if I go back to Xbox 360 and I have more than 100 friends, it will only show me the subset of my friends who are friends with me on Xbox 360.
"At launch, you’ll have your expanded list of friends and the ability to mark favourites so that it is fast and easy to play with the friends you care about most."
However, Whitten also revealed that there won't be direct voice chat between console generations, though you'll still be able to send text messages.
"For a variety of technical reasons – including the sound quality that I talk about below – we don’t support voice chat between the two systems. You will still be able to send and receive text messages to friends on both systems, however."
Whitten also reiterated the news that the Xbox One will now come bundled with a headset:
"As you saw in Major Nelson’s unboxing video, the console comes with our mono audio headset. This is an area where we’ve worked hard to improve the audio quality – and it is night and day compared to chat on the Xbox 360. The Xbox One audio chat headset now streams 24 kHz at a 16-bit resolution uncompressed both downstream and upstream compared to the Xbox 360 headset that streamed 16 kHz downstream and 8 kHz upstream at a 14-bit resolution compressed. I think people are going to be very happy with the audio in game chat and parties." [IGN]