No its not multplatform in the sense you mean.

To play any of MS xbox exclusives on PC you have to have Windows 10. You have to have an Xbox Live account, and can only purchase these games from the Xbox store. The same store Xbox One owners buy from Digitally. These PC versions have achievements just like the console because your connected to Xbox Live. Your playing through the Xbox app on Windows 10. With 3rd party developers putting their PC titles on the Xbox store on PC its controlled by MS the same way they control these publishers putting games on the Xbox store.

Hence why Cross Buy can exist. Buy 1 copy of Battlefield 5 when it releases and you get it on Xbox PC and Xbox Console.

What makes people consider Xbox on PC over Steam?

Steam wont have Quantum Break, Halo Wars 2, Sea Of Thieves, Killer Instinct, Gears Of War 4, Forza Horizon 3, Crackdown 3, Halo 5, Gears Ultimate Edition and so on. All MS First Party games will be available on Xbox PC Store. With full achievements. Cross Platform chat with console users, Cross platform play, Cross Platform buy. Then theres the ability to take a screenshot, then share it instantly on Xbox app with console and PC users alike. Or videos via Game DVR. Stream to twich with no fuss. The list is endless.

Microsoft are unifying ( and have done so already ) Console and PC Xbox players. On my Console I can chat, send a message, see videos etc with my friends on PC. Whereas before PC and console gamers could not interact like this. We arent talking just about a developer making a game Cross play which has happened on PS4. But the entire Xbox experience being on PC. Friends list unified. Everything.

http://www.vgchartz.com/article/263488/spencer-i-wouldnt-say-our-strategy-is-to-unify-the-xbox-one-and-pc/

Maybe they're waiting for E3 to fully disclose their plans. In fact, I'd bet on it!

I got to admit, I admire your conviction, but this UWP mantra is starting to sound like marketing the Cloud.
There is no fairy dust in making software, even on the exact same hardware, only faster processor and different amounts of memory, hdd or ssd we had to test throroughly and adjust data, balance memory management and timing between threads to make the best of the different hardware platforms. Cross compile is the easy part, the real work happens after.

I don't know about the huge praise surface pro got, all I know it's out of my price reach. Not at all good power/price ratio imo.
I'm not sure about the big turn around for XBox One either, still hiding sales for example.

But sure we will see. My guess is a cheap streaming box, no disc drive, 1tb hdd, hdmi 2.0, windows 10 with xbox one innards. XBox One games will look exactly the same, there is just no profit to be made with a slight yet costly upgrade. The only upgrade will be for the OS and streaming.
Of course it will be marketed as a completely new thing, Windows 10 UWP all in One machine, nicely locked to the windows 10 store. With keyboard and mouse support in a the next update it's ready for re-launch. The main focus will be on Windows 10, windows 10 store, all xbox one games on windows 10, buy an xbox one game get it in your windows 10 library as well, etc.

But if you want the games to look better, you have to buy your own hardware with windows 10 on it. Simple.

I like MS is there a problem here?

I dont wish to post in threads with information on a company or product Im not interested in. I dont see the point of trolling someone elses opinion or likes. Your taking things out of context. Especially referring to the Gears on PC thing. Other people have come forward and said in your thread that they have very little problems. The same who posted impressions that I read here on VGC. Ive not been here more than 5 minutes, and really only commented on MS announcement about Upgradeable Xbox Ones and exclusives coming to PC. Of which I like and see no problem of. So why would I need to be negative? I also praised The Last Of Us and Heavy Rain. They arent MS products.

Anyway, life goes on.  

What MS is saying is "we lost so we are going to not only leave the arena and kill our much-hyped champion but we are going to do our best (or worst) to actually destroy the arena because this is a game that we can't win so nobody should play it."

I have nothing against PC and PC gaming, by  the way, but these are the reasons I prefer to play games on consoles and keep the PC for 'work' things and phones for making phone calls.

- malware/spyware: platforms such as the PS4 and Nintendo have been virus free and whatever 'tracking' of online activties they do, it is limited and understood.Of course, Microsoft's desperate attempts to spy on users through Kinect have been a contributing factor to them losing the console competition because most of us don't like to be tracked and observed in our living rooms.

- hacker proof: unlike PC games, console games are generally hacker-free. I like that. Microsoft's unifying PC games with their consoles will open up the Xbox games to hackers and there's will be no way to avoid them if Microsoft has its way.

- optimized to the max: yes, consoles are not as powerful as the most expensive gaming PCs but, thanks to their 'fixed' and well documented and well understood architecture, performance on a console is way better than what you'd get out of a similarly built PC. Once Microsoft releases some universal developers' platform, you can forget about optimization. You will find that 'new games' will work as poorly on the Xbox you bought one year ago as they do on the $400 PC that you bought a year go.

- efficient allocation of resources: consoles don't spent CPU cycles constantly defending themselves from viruses or doing the many other things that PCs do, with their multi-layered operating systems that translate into enormous overhead. The Xboxes of the future if such things will ever exist and the PCs, of course, have a million more things to worry about than a console does.

- very limited ads. I heard that the today's Xbox is, in fact, full of ads but my PS4 has practically none. Which is another reason PS4 is ahead and is beating the crap out of Microsoft's 'monetezing' game.

So, to conclude, there are many reasons to do gaming on consoles but Microsoft casn't continue to support a console because what they are looking is not to provide a service to gamers but to use 'gaming' as a way to milk as much money from this specific cash cows demographics also known as 'gamers'. So keep singing them praises because it's good for you. Or so Microsoft would want you to believe.

What MS is saying is "we lost so we are going to not only leave the arena and kill our much-hyped champion but we are going to do our best (or worst) to actually destroy the arena because this is a game that we can't win so nobody should play it."

I have nothing against PC and PC gaming, by  the way, but these are the reasons I prefer to play games on consoles and keep the PC for 'work' things and phones for making phone calls.

- malware/spyware: platforms such as the PS4 and Nintendo have been virus free and whatever 'tracking' of online activties they do, it is limited and understood.Of course, Microsoft's desperate attempts to spy on users through Kinect have been a contributing factor to them losing the console competition because most of us don't like to be tracked and observed in our living rooms.

- hacker proof: unlike PC games, console games are generally hacker-free. I like that. Microsoft's unifying PC games with their consoles will open up the Xbox games to hackers and there's will be no way to avoid them if Microsoft has its way.

- optimized to the max: yes, consoles are not as powerful as the most expensive gaming PCs but, thanks to their 'fixed' and well documented and well understood architecture, performance on a console is way better than what you'd get out of a similarly built PC. Once Microsoft releases some universal developers' platform, you can forget about optimization. You will find that 'new games' will work as poorly on the Xbox you bought one year ago as they do on the $400 PC that you bought a year go.

- efficient allocation of resources: consoles don't spent CPU cycles constantly defending themselves from viruses or doing the many other things that PCs do, with their multi-layered operating systems that translate into enormous overhead. The Xboxes of the future if such things will ever exist and the PCs, of course, have a million more things to worry about than a console does.

- very limited ads. I heard that the today's Xbox is, in fact, full of ads but my PS4 has practically none. Which is another reason PS4 is ahead and is beating the crap out of Microsoft's 'monetezing' game.

So, to conclude, there are many reasons to do gaming on consoles but Microsoft casn't continue to support a console because what they are looking is not to provide a service to gamers but to use 'gaming' as a way to milk as much money from this specific cash cows demographics also known as 'gamers'. So keep singing them praises because it's good for you. Or so Microsoft would want you to believe.

Damn, people still paranoid about Microsoft watching over us through the Kinect LOL. Haven't heard that one in years.

By the way, all the consoles we play are computers. If MS goes through with this plan of allowing us to upgrade Xbox consoles and putting out "windows console hardware", they will still be computers dedicated to gaming, just like we have right now. And Xbox has never been "full of ads" :)

Lastly, every one of these console manufacturers are looking for ways to milk money from consumers as much as possible. It's how business works.