Hundreds of completed customer i8s are being held in Germany with reasons appear to range from publicity/hype to protecting dealer egos.
Apparently it would be a travesty if a "normal" dealer got their i8s before dealers in SoCal or Miami, so they're attempting to deliver all of the first cars to all dealers in a 24 hour window. I know a couple guys that have been staring at a "Production Complete, Awaiting Release to Carrier" message on their cars for nearly a month. I've been hearing it for two weeks. And now I find out it could already be on a ship if not for some petty politics.
So unless you are Rick Henrick or someone else that got theirs at the "US Launch" in Pebble Beach two weeks back...you're going to be waiting.