I was just re-reading Byron King's article from last year on Opel (POET) where, he asks:

"In practice, POET eliminates connectors, solder joints, assembly and multiple packaging steps. It decreases the size of a computer chip, as well as cost, complexity and power consumption. How about dramatically smaller supercomputers, which don’t require air conditioners the size of a railway car?"

I think somebody mentioned the link before but this makes me think that the Global Foundaries - IBM deal could likely involve access to POET technology. Perhaps Watson may be on the verge of a makeover.