Arma 3 should run better on Win 10 after 1.50, and the devs did drop a line about DX12 support, which would be welcome seeing the kind of overhead Arma has. But seeing that they haven't switched to a 64-bit build yet, I don't know how serious they are about DX12.
Windows 10 does things that I don't like much - 500 entry limit in the start menu, unusable right column in the start menu, settings split between Control Panel and the PC settings app, automatic backup, collection and sharing of wifi passwords (granted, not an issue on desktops), automatic forced restarts with a weird "reschedule" option, Cortana doing stuff in the background, and pages of privacy agreements and loads of settings to turn off. Oh and, new ways to log in! Always-on listening features to wake from sleep!
And yeah, this whole SaaS nonsense is really annoying. It seems to be a license to release incomplete software and keep streaming data to the cloud. If I wanted a cloud OS I'd just get Chrome OS I guess.
Windows is a "traditional" PC OS in my eyes, its job is to be subservient to the user and make sure applications run top-notch and in a stable environment. Nowadays it's all about gimmicks and oooh so shiny and look how
convenient it is. Excuse us while we mine all your data!
On the other hand, Windows 10 does have some "under the hood" improvements apart from DX12, which are nice, and I want. It's not enough to get me to switch - like Sparks seems to imply, the only game I'd really be arsed to upgrade for at this point is Arma.
Anyway, Windows 7 is supported till 2020. Market share is still above 50%, so I'm not too worried.
EDIT: This is pretty cool though:
http://blogs.msdn.com/b/directx/archive ... r-you.aspx
Looking forward to the day that the integrated GPU can accelerate physics effects (e.g. OpenCL based) while the main GPU renders.
Also interesting:
http://blogs.msdn.com/b/directx/archive ... eased.aspx