Applestarted taking orders for its flagship iPhone 5s in the U.S. and Canada at midnight Pacific Time after the phone launched earlier today in 8 other countries around the world. Most locales have seen tight supplies of all capacities and colors, with the gold model said to be particularly difficult to come by. The iPhone 5s is available directly from Apple via the Apple Online Store and the Apple Store iOS App [Direct Link], with the iOS app historically more resilient against traffic surges than the online store.