I've just came on this: http://mailman.cs.huji.ac.il/pipermail/linux-il/2013-September/010649.html
Just a short quote of it:"Hi, today we've made the first release of OSv, a new operating system for running applications on virtual machines. OSv is free software, released under the BSD license... a new operating system designed to run a single application on a virtual machine."
G
