It takes 100 crazy ideas to come up with one good one--like the finFET. Likewise, of the 100s of crazy ideas engineers are trying today, some will keep Moore's Law alive indefinitely--or at least until we start using synthetic biological computers instead!)
An optical emitter can be easily added to a III-V chip to make on-chip communications between electronics travel at the speed of light.
A III-V ring oscillator in more precise, burns less power and uses fewer parts than silicon oscillator.
Further Reading