I just ordered iPod Nano from Apple Store. I entered my shipping address and gsm number to the forms and payed it by visa. No problems here. But for some reason, the gsm number does not transform correctly from the Apple Stores internal systems to TNT (the courier which apple uses, as confirmed by the nice girl in TNT customer service: The phone numbers from apple are usually just some junk and they can’t read them). I solved the situation by calling TNT customer service and they re-cheduled the delivery for tomorrow.
Next time, I will call TNT customer service in advance to report them my gsm number and tell them when I would be at my home (or some other place) so that the courier don’t need to come to my front door to notice that I’m not home :)