Spyros wrote:
But the reason that makes most of us virtualize, is this; we need some specific Windows-only application under GNU/Linux.
There may be some enthusiast that collects and test-runs abandoned OSs, but the majority isn't virtualizing for a hobby.
Please tell me what kind of professional needs
only some specific Windows-application like Photoshop, but needs Linux software otherwise?
If you are just editing for fun, you don't need serious power. You could even run (older) Photoshop in Wine. Or just use Gimp.
Another funny thread was someone asking if Autocad worked in VBox. Now tell me a professional that would use Autocad in a virtualization window and why? Ok, I'm not an architect, but I doubt they generally run Linux.
Just Dual Boot if you want such demanding software to work or buy another PC. And notice that I'm just talking about specific software that wants specific access to hardware etc. I think it's fine to run "heavier" applications virtualized.
I'm sure in few years things are more advanced and everything is virtualized with ease, including GPU access.
And the professionals, (e.g. web-hosts) would never rely on open source software with no support guaranteed for their business. They'll opt-in for the commercial solutions like Virtuozzo.
What's this got to do with anything? Professionals are more than able to run open-source things like XEN without "commercial support".