I can definitely agree with you on his lack of change in his approach as of late, HG. That is true and I would love to see him return to a period piece like Great Train Robbert or Eaters of the Dead (a damn fine novel in its own right as well).

Motti, Prey is about nanotechnology in which scientists create nanodrones that are intended to fly around over enemy territory undetected. Then, when ready to strike, they form together to create a nanocloud that can attack and destroy just about anything. However, these nanobugs, in combination with the AI implanted in them, start to develop intelligence and evolve and they get loose.

I may be a bit off on my description as it's been well over a year since I read it.