Speaking at the Game Developers Conference, Xbox head Phil Spencer revealed Microsoft's plans to integrate Windows 10 with its various gaming platforms.
Windows 10 will act as a unified OS, allowing developers to create one version of a game that will work across all Microsoft platforms - PC, Xbox One and tablet. Cross-platform play is supported - as demonstrated on stage, when the #IDARB crew rocked up on stage to show their game being played competitively between an Xbox player and a foe on a Surface tablet.
A forthcoming wireless adapter allows wireless Xbox One peripherals to work on PC, and games will support cross-buy, from a dedicated Windows Store app.
This integration is also being extended to Microsoft's growing ID@Xbox indie development program - allowing games made using this service to run on PC or tablet.