The specification for Ultra Mobile Broadband, also knows as EV-DO Rev. C, was published today by the CDMA Development Group and the Third Generation Partnership Project 2. It includes a number of upgrades for the CDMA family of wireless technology, including peak download/upload speeds of 288 Mbps and 75 Mbps, respectively. Along with the faster speeds, it has increased data capacity, reduced latency and covers larger areas. UMB is the 4th generation of wireless technology in the CDMA path, while LTE is the 4G technology for the GSM path. With Verizon’s recent indication that it might choose LTE rather than UMB, and Sprint’s move toward WiMAX, the future of UMB and which companies will deploy it is unclear.