Singtel sent the following email to all its customers who reserved the iPhone. One interesting fact is that Singtel claims that the iPhone runs on not only 3G, but 3.5G (HSDPA). If that is the case, our iPhone will run much faster than the US one. Wonder how true this is.
Edit: As our commenter points out, the iPhone 3G has always been HSDPA right from the start, somehow the comments over in the states about having only speeds around the 700kbps mark always gave me the impression that it was 3G rather than 3.5G.