Microsoft has largely eliminated a big barrier for developers by unifying the code base of its mobile and desktop operating systems.
A new top of the line Lumia smartphone joins two budget devices announced at Microsoft Build.
The latest revision of Windows 8—technically Windows 8.1 Update 1—aims to mollify PC users while updating the Windows Store.
Microsoft has spent the last few years bundling core services into a single platform. The full maturation of that platform will be seen this week at Build 2014.
The personal assistant is one of several updates, including notification trays and better volume control, slated for Windows Phones.