Yeah, I understood what you were saying. USB, is an interface, the rate at which data is transmitted is not effected by Quantum tunneling was my point. Last I checked nobody is building flash memory with special spacing or design to increase read and writes using this theory. Also, if it was used as a storage technique, you'd think it would have a different name, or a performance increase. Simply put, I'm not aware of this theory being used in any practical application... or any Quantum theory for that matter.