1) according to wiki, the phone supports: GSM 850/900/1800/1900 GPRS 107/64 kbps DL/UL EDGE 296/178 kbps DL/UL UMTS 900/1700/2100 WCDMA 384/384 kbps DL/UL HSPA 10/2 Mbps DL/UL And my carrier supports 3G: 900/2100MHz GSM: 900/1800 Source: http://www.gsmworld.com/roaming/gsminfo/net_auo3.shtml This means that it should work in Australia without a problem do I need to be concerned about HSPA? Or is that a global standard?