The OP asked about
NANO computing, not quantum computing.
Nanocomputer refers to a computer smaller than the microcomputer, which is smaller than the minicomputer. ... The term nanocomputer is increasingly used to refer to general computing devices of size comparable to a credit card.
Nano computers will enable us to put a bitcoin node on a card or on a USB stick.
You still need the storage, a simcard is technically a full machine if I remember correctly. It has rom, ram, an OS, and a cpu.
So I would say we are are in the world of a microcomputer, does it mean anything to the world of crypto.
No.