IBM smashes Moore's Law, cuts bit size to 12 atoms
computerworld.com
computerworld.com
I'd also note that while this is a very cool experiment, the fact that it was performed using a scanning tunneling microscope means it's not exactly a practical device :) But as a proof of principle of storing a bit in a few number of atoms, this is a very neat result.
Sometime, I really wish I had a job where I got to play with individual atoms.