Does the XB1 support...

I will be bummed if I can't network my PC with the X1 and have the X1 access my music and video folders :(

It can't be not there right? Doesn't MS know how many people use their 360's as a media hub in their living room pulling media from their computer that's in another room?
 
Someone please inform me a little more about this xbox music. Is it the music that you have to buy and download like itunes?

You can buy songs or albums just like iTunes, or you can pay $100/year($10/month) for unlimited ad free streaming with the Xbox music pass. With the Xbox music pass you can also download as many songs as you want for offline streaming, but when the pass runs out, you don't get to keep the songs. Here's a link if you wanna know more. http://www.xbox.com/en-US/Music
 
Have they said anything about how much cloud storage is going to be available for saved games on XB1? or is it still going to be 512mb like on the 360?
 
Have they said anything about how much cloud storage is going to be available for saved games on XB1? or is it still going to be 512mb like on the 360?
Pretty sure it is technically skydrive. Which is 7gig by default.

Could be wrong though.
 
I want to know what video files they support. I'm hoping MKVs finally...but not holding my breath.
 
There's really nothing that the Xbox One can't do. It's called the One for a reason. It's the all in one set top box.