From the Microsoft post:
Today we’re delighted to announce that over one billion people have chosen Windows 10 across 200 countries resulting in more than one billion active Windows 10 devices. We couldn’t be more grateful to our customers, partners and employees for helping us get here.
From one to one billion devices—one customer at a time
One in every seven people on the planet are planning, creating, ideating, executing, moving, shaking and doing great things with Windows 10.
Because no matter who or where in the world or life they are, Windows 10 provides them with the features and flexibility they need to achieve more. From the high-powered developer who needs the most advanced technology available, to the business professional who needs to be productive at work and home, to the student in a developing market who is looking for a low-cost device for learning and self-improvement—Windows 10 is the platform to meet all these needs.
Unsurprisingly, Mobile has been left in the rear view mirror for Microsoft now, but they did talk about devices:
Freedom of choice has always mattered to us—because we know it matters to you. Windows 10 is the only operating system at the heart of over 80,000 models and configurations of different laptops and 2-in-1s from over 1,000 different manufacturers. But that’s not all. Windows 10 also powers Mixed Reality and HoloLens—transforming the way people build, design, learn and experience the world around them...
Windows 10 has enabled new category creation with devices like the Surface Pro, Surface Book and Surface Hub 2S. And we are committed to keep driving to innovate with devices like Surface Neo, a new dual-screen device which will run Windows 10X, which enables unique experiences on multi-posture dual-screen PCs.
Mobile gets a mention, but only in the context of Microsoft's new Mobile love, Android (and especially Samsung):
From pioneering seamless touch and pen experiences, to enabling biometric log-in with Windows Hello, and with experiences like the Your Phone app, enabling Android users to connect their phone to their PC—we strive to meet people where they are.
Congratulations on the milestone from us at AAWP anyway, Microsoft. And Windows 10 Mobile was a part of your W10 journey for four whole years, remember!