Is It Time To Get Rid Of The Linux OS Model In The Cloud? (2012)
highscalability.com
highscalability.com
I think that will probably happen fairly quickly for specialized alternative models for narrow domains (it probably already has -- I think I've seen that there are some in use now, and I'm sure there's more that I haven't heard about that are being used internally in private clouds by actors that don't talk much about what they do inside), but a general purpose replacement for the status quo style of OS stack for the cloud environment seems farther off.