But this is what smartphones are for, and Android and iOS have filled that niche. It's not the 90s anymore; Nobody wants to carry a PDA in addition to their phone. This is the whole reason modern smartphones exist in the first place.
There are very few of these devices remaining, and most businesses who used them have switched to Android-based devices. The Windows Mobile 6/ Pocket PC form factor is about 20 years old now. I still smile nostalgically when I spot one in the wild, but those sightings have become few and far between.
Look guys, I was as much of a die-hard as you all. I wanted to believe. I drank the Kool Aid. But it's over, and Surface Phone will never happen. You're talking about an expensive premium device that offers nothing compelling to enterprise users and even less to consumers. The Surface Phone already exists, and it's the Note 8 with your favorite Microsoft services installed. With its stylus and DeX, and a 6"+ screen, this is the type of thing we should have received two years ago instead of the 950. You can install a tile launcher and theme, and it ends up approximating the Windows Mobile experience close enough to keep you happy while running on a living OS where things actually work.
I know that W10 on ARM was supposed to be the killer feature on Surface Phone, but who cares? Most of the apps and features that people want from other platforms aren't available on W10 desktop anyway, so it's a moot point. I was a devoted Windows Mobile user for 15 years, but it's finally time to accept reality. Microsoft lacks the competence and desire to compete in this segment of the market.