It takes place in a desert city (Mojave, I think) - there is nanotech, a fair amount of dystopia, genetic modification, and I think someone sprouts wings in the end...kind of cyberpunk-ish.
1 Answer
If you take out the "someone sprouts wings in the end", I would say you are describing Prey by Michael Crichton. Published in 2002, it is described thusly in wikipedia:
The novel serves as a cautionary tale about developments in science and technology; in this case, nanotechnology, genetic engineering, and artificial intelligence.