I'll let you know how ours is when it comes in. I dropped about $2500 on one with accessories last night (including a 4 gig Nano, spare battery, maxed out white model). The shipping date is early June. Hopefully they won't wait until the battery is available to ship it, they won't have spare batteries available until June 13.
There will be photos and a write-up. I may also try boot camp on it but we'll see how the wife feels about that, since it is her graduation present.
You can put it anywhere before the closing body tag - we happen to have it in the header because that was the best place for us to put it given the way we create page layouts. I would suggest you only put it in ONCE, though.