Lot of penis showing going on in this thread.
To answer G's question though...it is based all internally by the car's computer. It'll tell you when to go in, so you should probably do it as the maintenance is free anyway :P.
As for break-ins....it's all about taking it easy and letting everything set right. I'd ask the dealer to give you fully synthetic if they haven't already.
When I got my cars and even my motorcycle they have a break-in period IN THE MANUAL. 1000(gsx-r) miles to 2500(wrx) miles. I imagine with a high revving V8 and an engine that's kind of new, you'd want to follow the guidelines and put your ego aside when running against a vette, porsche, equally competitive ride.