3G Americas reported today that 81% of all mobile digital wireless customers worldwide use the GSM family of technologies GSM / GPRS / EDGE / UMTS / HSDPA. In fact, from fourth quarter 2004 to fourth quarter 2005, GSM grew by more than 400 million subscribers, compared to the total base of 291 million CDMA customers at year end 2005. Today, there are an estimated 1.8 billion customers in 213 countries around the world using various evolutions of the GSM technology, all with the potential for worldwide roaming.