I use Chrome. I don't have any plans to switch.
So just because you use Chrome, everyone does? I don't, for my use cases Chrome sucks donkey balls, so I use Firefox (and Edge in edge cases).
I don't use Microsoft Paint (paint.net or photoshop works fine), and I don't create 3D models.
Good for you. Some people surely do. You are most certainly not a shining paragon of computer usage.
There have been apps to do this for as long as I can remember.
So? Is any given software allowed to exist only once in that little universe of yours? Is the purpose of an application used a primary key in the data base in your head?
I don't tend to lock my computer at home, and the large delay (30 seconds after the bluetooth signal drops) before it locks after you walk around the computer makes it useless for any environment that actually requirse real security.
You forget all the environments where real security is not a must, but locking the computer when away for lunch/making tea/going for a piss still makes sense and avoids pranks by coworkers.
Windows has had native support for surround sound (without any custom software) since, what, Vista?
Depends. Maybe this update brings a real time Dolby Surround encoder or something like that.
Nobody uses Bing Maps. People use Google Maps, or Transit, or even Apple Maps. But not Bing Maps.
Speak for yourself, kiddo. I use Bing Maps because it is 10 times faster than Google Maps.
I'm sure that all three people who mortgaged their houses to buy the HoloLens will be thrilled. For most people, headset (I presume you meant headset) based mixed reality is far enough away that Windows 10 won't be relevant by the time it's a thing.
Windows XP is still widely used, even though it was released over 15 years ago. Windows 7 is the most used version of Windows and is over 7 years old. Mixed reality can become a thing in a few years, and this way Microsoft avoids the chicken and egg problem.
Dude, grow up, seriously.