The OnePlus One is a solid phone (as highlighted in our review), but remains to be one you're unable to purchase unless you receive an invite. The company is planning to run yet another day for those interested in purchasing one to place an order without an invite on January 20.
The promotion will run between 19:00-21:00 GMT / 7PM-9PM EST on the day. Both the 16 GB Silk White and 64 GB Sandstone Black versions will be available without invites. The 16GB version will set you back $299, while the 64GB variant costs $349. Do note that you'll only have a two hour window to act.