I have serious reservations in regards to practical applications. In principle it sounds great, but in practice the system will probably never be robust enough to function in a real world setting. Sure you may have some computers using it that are well shielded, and able to be super cooled for maximum efficiency, but those wouldn't be in the hand of private citizens. Far more likely that they would be used for scientific research, and by governments as servers, but you probably wouldn't be using them in your home at least directly.
The reality is scientists in this field aren't interested in making a better computer for us as consumers. They want to create a tool that they can use to solve their most difficult problems. That is why the approaches they are using are so impractical. Seriously who is going to want to keep anything super cooled in their house. Not only would it cost the average person a fortune to power, but it is also ridiculously dangerous.







