Please help me to identify this book that I've read in early 00s (but might be bit older):
- While there are no cyborgizations, big portion of the book takes place in the Virtual Reality, hence you can call it a cyberpunk. Other characteristic elements of this genre like fall of governments in favour of commercial corporations is also present.
Main character is half black, half Japanese part time programmer, but his day job is pizza delivery. On both jobs he always carries his ancestral katana.
Above mentioned pizza delivery is controlled by Mafia - with the collapse of USA, the "Family" became legal organisation. If the delivery takes longer than 30 minutes, the Don himself gives you his apologies and provides you with Italian citizenship.
- Second protagonist is a foul-mouthed teenage girl working as a skateboard courier. She also wears quite nasty anti-rape device.
- The main villain is (if my memory is right) somewhere from the fallen Soviet Union. He butchered a submarine crew, stole one nuclear warhead and declared himself "a country with nuclear armament" thus making himself protected from criminal law (since you can't arrest a country).
- The main story involves a computer virus, somehow related to Sumerian (?) goddess, that generates a "white noise" images making people go insane.