I can’t say that Kevin Rose of Digg.com has ever been dead on, or even remotely close to being correct when it comes to rumors or leaks regarding the iPhone. In his weekly Digg podcast, Kevin referred to the new iPhone as the “iPhone Pro, or whatever” featuring 3G support and a second camera behind the glass faceplate for video conferencing. The release of the iPhone pro is “in a few months,” according to Kevin. I think Kevin might be right on the time frame. I expect (and hope) that Jobs will announce the new iPhone at the World Wide Developers Conference in June.
I believe reasonable that apple night not actually introduce a pro version, but rather, a new iPhone. As with the 3G, which replaced the iPhone before it.
And probably it would be after WWDC2009. Because until that date, Apple needs (will) focus on the OS. That’s my take. However, we never know about Apple.