6:40 am, so not all here... nanotech is just the new craze in technology, nano reffering to size, as in nano sized electrical components that will offer equal or better performance at a much smaller scale... makes it possible for things like PDA's and cell phones to incorporate much more fetures and "processing" power in the same small packages...
I just saw a discussion on the telly talking about nanotechnology. In some uni in Australia, they managed to deliberately move a single atom using an extremely fine fibre. There are quite a few teams around the world that are trying to develop quantum computers (Uni of Sydney is involved I believe). These computers will manipulate atoms individually. As far as how it works, well, it's too bloody hard to understand when they try tell you in a half-hour time slot.
yeah, nanotechnology is pretty much what has been said.
it's most important aspect has to do with interconnects for extremely small circuits.
go to eetimes.com, you'll find some important information.
as for quantum computers, the most important thing is to increase the qubit capacity of current computers as well as to make the coherence last longer. i mean, interconnects mean squat if there is nothing to connect it to.
i read about silicon nanowires, and they were quite an interesting read =)