Hardware Implants

I was reading some of the articles on Slashdot, and although many are interesting, I found one to be particularly amazing. The blog talks about implanting a computer chip to act as a neuron. The article then makes some impressive claims that if this chip works as described, it "could remedy everything from Alzheimer's to absent-mindedness — and reduce memory loss to nothing more than a computer glitch." That would be simply amazing, but I would like to see some more information on the subject before jumping to any conclusions. Check it out here.