According to eminent technology journalist Walt Mossberg, who writes for the Wall Street Journal and was one of the first people to get their hands on an iPhone for review, believes that a iPhone 3G is just sixty days (two months) away.
That coincides nicely with Apple’s World Wide Developers Conference in June and the official launch of the first third party iPhone applications.
What else can I say? Mossberg is generally worth listening to when it comes to gadget reviews, but I’d be very surprised if he’s got any inside information on this. It’s probably an educated guess — better than an uneducated one, granted, but still from someone on the outside of the Cupertino fortress.