The highly-rated OnePlus One phone will briefly be available for pre-order again next week, but only for one hour, the company has revealed. “Last month, we launched our pre-order system as a chance to purchase the OnePlus One without an invite, and tens of thousands of fans became new One users. OnePlus has promised people who purchase the device while it is in stock will see their devices shipped instantly, while others’ will be “automatically converted to a pre-order” and be issued with an estimated shipping date.