This particular breakthrough product probably wouldn't start appearing in chips for at least 8 or 10 years, though. It's fine to get excited! Just don't think we're getting nanotubes in our phones next year. Changing materials is a huuuge step.
Even then it will have to make economic sense to switch. After all the equation is not x > y but $n using tech x buys more computing power than $n using tech y.