What if we add more than 100 people on xbox one and ps4, and then sign out and go and play on xbox 360 or ps3... what will happen to those newely added people? Because I thought the bigger friends list was ONLY for next gen :S
On the PS3 it will show 100 players.
Here is how it determines those 100 players.
I assume the 360 will have a similar way to show your friends, since the 360 will have a cap as well.