[kelleyk]

I haven't had a chance to play with it, but I ran across this project the other day: https://github.com/cloudius-systems/osv

"OSv was designed from the ground up to execute a single application on top of a hypervisor... OSv... runs unmodified Linux applications (most of Linux's ABI is supported) and in particular can run an unmodified JVM, and applications built on top of one."

[emmanueloga_]

This article [1] lists a couple of other "cloud OS" systems. OSv and mirage [2] seem to be the two most promising ones right now.

1: http://www.linux.com/news/enterprise/cloud-computing/751156-... 2: http://www.openmirage.org/