“So we’ve got it on authority that the second-gen iPhone is already well into testing, and numerous units are floating around in super secret pockets. A trusted source got a chance to check one out, here’s what we’ve heard,” Ryan Block reports for Engadget.

“The first thing people will notice: the 2nd gen iPhone will be about the same size and shape as the first gen.,” Block reports. “It will, of course, have 3G. And proper GPS!”

“The phone itself will be slightly thicker than the first gen device,” Block reports.

More details here.