I have no idea if this is true. I believe some of his past predictions have been less than correct but I thought I would post the video as the idea of a second camera is interesting.
One of the main rumors on the web is that a 3G iPhone will be release in June to co-inside with the release of the SDK so hardware changes could be made at the same time. This could be just changes to the present model or a completely different one. I believe that any new model would have to go to the FCC for approval and surely if that had happened it would have leaked.
I always like to read the new rumors that surface about all Apple products – personally I am waiting for a new 12″ Macbook Pro – but I will believe it is true when the man in the black shirt says it is.