OnePlus One pre-orders will be open for only one hour, so if you don't get in that window, the current invites method for getting the phone will still apply. The payments are processed via PayPal, and OnePlus is recommending that you get your information all up to date in advance to avoid any hiccups. And if you're particularly nervous about getting in on the orders, you can save your shopping cart in advance to make sure it all goes smoothly.
OnePlus One is perhaps the hottest Android phone in the world, made all the more enticing because we keep hearing about how awesome it is and we can't freaking buy it. [OnePlus]