I love the iPhone, but compare Apple.com (http://store.apple.com/us) to Apple.ca (http://store.apple.com/ca) online stores - Up to 12% difference - HIGHER in Canada.
You have to remember, geographically it is more expensive to move product around our country then the USA. We have fewer ports, rail lines, and longer distances between major cities. Fuel costs are rising, it is simply business, the cost of getting the product to the customer is being passed on.