I like the idea, yeah. Virtual machines running in Xen hypervisors can be very small because they can make a lot of assumptions about the "hardware" they are ru

I like the idea, yeah. Virtual machines running in Xen hypervisors can be very small because they can make a lot of assumptions about the "hardware" they are running on. And as a negative example, every Android ROM has to be compiled and distributed separately for each model of phone it supports, because ARM platforms don't have a BIOS layer so they can't generalize.