The Next Generation Cloud: Unleashing the Power of the Unikernel
slideshare.net
slideshare.net
Unikernels mostly still require per-stack implementation. That's a lot of engineering effort right now. There are halfway-houses like OSv (mentioned in the slides), but they weaken the case.
I'm still bullish on Unikernels. With some work Garden's API could be adapted to run unikernel binaries. That means the ecosystem for Cloud Foundry would work almost "out of the box", as it already does for Garden droplets, Docker containers and .NET applications.