[jgome]

I'm thinking about, say, a big array of cheap, powerful-enough dedicated ARM/MIPS CPUs, used on-demand, one for each VM.

[mardurhack]

Considering multiple VMs share the same CPU, at times, I don't see it as a very convenient solution unless marketed as a "premium" package which very few will purchase given that these "attacks" are not that easy to carry out.