I don't think it should take decades, as the technology to make it is already conventional commercial tech. That said, the stated 740% increase is in compariso

I don't think it should take decades, as the technology to make it is already conventional commercial tech. That said, the stated 740% increase is in comparison to traditional heat sinks. A lot of devices today have already been sort of heading in the same direction, as many are already utilizing the chassis as a significant heat sink (phone's, tablets, thin laptops). While I'm sure any designs utilizing this method would still see an improvement, I have my doubts it'd be a 740% improvement in currently thin devices.