We knew Naruto was an idiot, but damn...poor Kakashi.
Anyway goo-gobs of Narutoverse questions answered is certainly a good thing. I had always wondered if Naruto had either shared awareness or actual control over his clones. This form of bond between clones however opens up a new door for Naruto to go thtough to get smarter, were he so inclined.
However this training method doesn't make any sense. if he creates a clone of himself and both try to solve a problem they'd both probably do it the same way since they're both Naruto. I don't see how he's supposed to learn faster if he has hundreds of clones with the same thought patterns trying to solve the same problem.