ARS Technica covers the chip in more detail. Overall, it's an impressive demonstration, but we're still very far from carbon nanotube chips that can perform real-world workloads:
Overall, this is an impressive bit of engineering and an important validation that we can integrate carbon nanotubes with our existing chipmaking processes, as well as with the additional electronics that are necessary for a processor to function. But it doesn't go very far in terms of solving the issues that keep carbon nanotubes from reaching their full potential.