the iPhone X pre order on Oct 27th is gonna be one big mess.
First worldwide pre order, instead of the earlier pre orders in waves. And then also the fact it's Apple first oled iPhone ever.
Add these 2 details up (plus the fact that there is just a very low production of the X model, about 10k units a day) , and you can almost be sure that if you dont have your pre order succesful within 10 seconds, you will have probally shipping times of at least 10 to 14 weeks.
I would expect around 15 million people around the world trying to get their pre order in, at the EXACT sime time....imagine the Apple website traffic and AppleStore app trafic; 15.000.000 people in a few seconds (or 1 to 3 minutes )
This is gonna be just like the pre orders of JetBlack iPhone (that was not even a worldwide pre order like now, and that JetBlack had shipping times of about 10 to 12 weeks in some countries) and AirPods all over again (maybe even worse).
Well at least if you hopefully get your iPhone X somewehere in january/february next year, you can enjoy the iPhone X for about 7 or 8 months before Apple announces the new 2018 (oled) iPhone in September 😉