From what i was too understand about the new xbox. I will be getting a ps4.
They will make it where you have too have a network connection on and established for a spefic time before your online gaming will be a normal connection. IE if i unplug my new xbox and goto a friends house my connection will be listed as a "guest type" online connection will be limited. After a spefic ammount of time has passed where my xbox has connectivity it will become a normal non guest limited account type for the online.
They will also be able to turn on headsets, cameras and anyother device connected to the xbox... IE i have my laptop and phone bluetooth connected too my xbox for music streaming while i play.... Now they will be able to access those devices and peek around. As far as the xbox being on a home network and having access to all the computers on the network that is up to your network policies in place ect.... But it sounds like they are trying too make it easyer for social media guys too share stuff. I will try and find the review my brother was reading too me at work the other day.