Virtual Box security concerns

[firenice03]

Any non patched OS or updated app/browser can become vulnerability - how many smart phones haven't been patched/updated but are still in use...

By the way, do you imagine a world where one goes to a website of a certain company of choice and "orders" a PC of exactly this or that amount of RAM, capacity of hard drive, video memory, quantity and quality of computer cores, while just after the payment resolved, the ordered machine becomes available already in the manner of seconds? We talk about the world of cloud services, to be understood. Upgrading should come comparably swiftly as well.

It's coming - Desktop as a Service, you'll purchase a thin client and the OS will be VDI (Virtual Desktop Infrastructure), so its kinda here.
But yeah just like Office 365 your OS will be in the cloud. I can see in the enterprise not sure a home user thou.
Personally I like Samsung's DEX idea.. Having a Phone/Table that can be used as a PC. 

Depends on how many tools I need in my tool belt/toolbox - LOL.. Each tool or a Swiss army knife.. sometimes both...