Untrue
No. 2,3 and 6 are not true.
I've been a solution architect and enterprise architect for various companies for over 14 years.
2 - I have seen a number of unstable MS only Windows systems, and a very large number of highly stable Windows machines with all kinds of 3rd party software. I have also seen a lot of unstable Linux machines (albeit usually running Oracle).
3 - I doubt even 5% of our Windows fleets have ever been compromised. We have rigorous testing, vulnerability scanning and security processes in place and would certainly detect just about any threat that hit us in short order.
6. We are already running 'desktops on the cloud' today on a variety of platforms, from tablets to smartphones to laptops
