[citation][nom]cheepstuff[/nom]i think the biggest problem is heat dissapation. i mean, your brain dies at 108 degrees F (42 C), so those processors are going to have to be LOW power or external (outside the brain). could you imagine getting brain damage on the tissue around your implants from the heat. anyway, it seems like a viable concept since they have been implanting chips on people's brains for years in medical applications.[/citation]
As a matter of fact, 30mW is about the max the chips will be able to use safely inside the cranium. That's enough to increase surrounding tissue temperature by 1C, which is as far as you want it to go.