Korean MP3 player maker Reigncom has signed an MoU with Posdata on developing WiBro (Wireless Broadband) devices. Under the agreement, Posdata will manufacture WiBro communication chipsets for Reigncom, while the latter will use the chipsets to develop devices capable of downloading various kinds of digital content through WiBro. In addition to development, production, and marketing, these two companies will work together in after-sales services.