Microsoft will let you turn any handheld into an Xbox handheld — eventually
The ROG Xbox Ally isn't the only device using the new Xbox OS.

Microsoft's long-rumored Project Kennan handheld is official, now called the ROG Xbox Ally. It's a typical Windows handheld, redesigned for a similar feel to an Xbox controller, but it's packing a special version of Windows that's been tailored for a handheld experience. This new operating system is coming to the ROG Xbox Ally first, but Microsoft isn't closing it off to just one device. It says users with other Windows handhelds will be able to install the tweaked operating system, but you may have to wait a little bit.