> I really don't see what this brings. Is google so lost that the only "innovation" they can bring in android is descovering that the linux kernel has support for virtualization ?

When talking about the strategy of a successful multibillion dollar company, the most likely answer is "no".

The very short article explains at a high level:

"they’re used for things like enhancing the security of the kernel (or at least trying to) and running miscellaneous code (such as third-party code for DRM, cryptography, and other closed-source binaries) outside of the Android OS."