I could be wrong, of course, I am not infallible. What I tried to point out is that the functionalities you mention are available in a single box, instead of having to buy a set of different, non unified devices.
This video is also an example of what I mean -just imagine the possibilities, I have a Skydrive account plus Google Drive, and I have shared some files using both):
http://www.gamespot.com/videos/skydrive-on-xbox-one/2300-6416064/
You can connect different devices -even consoles, like playing the Wii on the Xbox One- through the HDMI In port, record videos of that footage, upload them in a jiffy with Upload Studio, share photos and videos via Skydrive or wherever you prefer, watch TV channels, play games, maybe you can use Windows 8 apps, DLNA functionality, Internet Explorer, Skype, the ability to listen to music and watch movies, voice commands and gesture recognition, and facial recognition too.
It also works with your other devices at home.
My laptop included many of those features when I purchased it for instance, but it needed a myriad of programs to work, and I uninstalled most of them because it wasn't intuitive.
The mainstream public want devices a la Apple, easy to control and manage while extremely functional. That's where the Xbox One could be interesting in a company like Microsoft which hadn't always stood out in that sense.