I have not seen Windows 10 yet. To be honest, the Windows 8 debacle has spoilt everything Windows for me for a looooong time. Not that I was a fan before but I W8 was such a disaster that only a die-hard fanboy could think it was a good idea.

In W8, Microsoft had tried exactly that. The Holy Grail of merging mobile and desktop UI. With a totally disastrous result. Intead of trying to bring the mobile UI up, closer to the desktop level, they went the other way and brought the desktop down. They effectively turned a production tool into a toy.

You claim Windows 10 is better. Well, maybe. But I doubt a real sunergy is even possible. The two environments are just too different. It's not like comparing a car to a bus. It's more like comparing a car to a cable car.