This is pretty big news and could give Xbox Live a huge advantage over the competition if they're unable to match it.
http://www.neogaf.com/forum/showpost.php?p=86164933&postcount=315
Also to be clear. One of the benefits of publishing games on Xbox One – ALL game developers get Dedicated Servers, Cloud Processing, and “storage” (for save games) free.
If you want to do dedicated servers on other platforms, you have to prop them yourself. But on Xbox One, while developers can choose to use their own methods, we make it available to everyone.
There should be no confusion on this point. We do not charge developers for Dedicated Servers.