Samsung's Galaxy Z Flip appears to be in high demand or in short supply. Whatever the case, they're out of stock. Samsung restocked the Z Flip in the US today but quickly sold out again. The latest news comes from Korea where the exclusive Thom Browne Edition of the phone has quickly sold out after going on sale today. Of course, Samsung hasn't revealed exactly how many units it has sold out of. According to reports, the Thom Browne edition of the Galaxy Z Flip was so popular in Korea that Samsung's website briefly crashed. Samsung had originally set up several physical launch locations,...