The big day is finally here. People are busy upgrading their Windows 8.1 installations with the recently released Update, mobile enthusiasts are in refreshing their smartphones with the developer preview of Windows Phone 8.1. And in the meantime, Microsoft has marked the start of a new era with universal Windows and...

From Long Zheng: He gives a really detailed description of the new universal application deployment system called AppX. It seems to be inspired by XAPS for Silverlight and apparently the highlight of each Appx package and an XML file called the “AppXManifest.xml” file. This file will specifiy what the attributes are...