I just tried installing 3.0 and keep getting this error. "We could not complete your iTunes Store request. An unknown error occured (-4). There was an error in the iTunes Store. Please try again later." Now my phone is a brick. I am sure it will get fixed but it is very annoying. I guess it's my fault for being impatient. They should have a lottery or some sort of staged roll out so they don't have these issues. Anyone else having this problem?