A story today at setteB.IT (English translation) reveals the 20 countries where the iPhone 3G will arrive on 22 August 2008. The funny part is that there are not 20 countries as indicated by Apple during their Q2 conference call, there are actually 21.
This will make a total of 43 countries carrying the iPhone 3G on 22 August. On setteB.IT you can read the complete list updated will all the announcements. More carriers could be added during next days.