I am a canadian that has reserved an ipad using a US account (with my brothers US address). Also, my friend has reserved his using his Canadian iTunes account (with CDN address). When we go pick this up in Chicago, how does apple identify the reservation? Do i need to show proof of a US address matching my itunes account? or bring a print out of that generic email? or perhaps just quote my itunes account and that's it? anyone with previous reserve-and-pick-up experience could really shed some light on this! thanks.