Asian travelers be aware.... the Verizon iPhone4 does NOT work at Hongkong International Airport.... I couldn't make any phone call out and can't receive any incoming calls either.... although the phone has the WEAK signal of roaming (1 to 2 lines)...but any phone calls I tried to make or text messaging all did NOT go through.... it was such a huge disappointment. I just don't know why my old verizon blackberry phone worked great in Hongkong/China/Taiwan and the iPhone just did not work....
Also be aware, even if you have the WiFi connection, the Verizon iPhone will NOT allow you to browse the internet using Safari, becuase it will ask you to turn on the data-roaming service.... what kind of plan is this ???? I waited for the iPhone to be available for so long but it turned out to be useless when I needed it the most... thinking about returnnig it due to the service failure