Kurzweil is still claiming that we can infer something about how much complexity is in the brain from the genome. He writes:
The amount of information in the genome (after lossless compression, which is feasible because of the massive redundancy in the genome) is about 50 million bytes (down from 800 million bytes in the uncompressed genome). It is true that the information in the genome goes through a complex route to create a brain, but the information in the genome constrains the amount of information in the brain prior to the brain’s interaction with its environment.
There is an interesting blog debate going on between PZ Myers and Ray Kurzweil about the complexity of the brain - a topic that I too blog about and so I thought I would offer my thoughts. The "debate" started with a talk by Kurzweil at the Singularity Summit, a press summary of which prompted this response from PZ Myers. Kurzweil then responded here, and Myers responded to his response here.