New 16GB, matte metal-backed iPhone 3G revision leaked?

Apple may be preparing to roll out an updated version of its 16GB iPhone 3G. An image showing a new case back seems to back up rumors that an iPhone update is on the way thanks to its model number, A1303, which previously hasn’t appeared on any iPhone model,” Jeff Gamet reports for The iPod Observer.

“The new iPhone case back appears to shed its glossy appearance for a matte black look, and also sports what may be etched markings which indicates the plastic used in the current iPhone 3G model may be dumped in favor of a metal back — much like the first generation iPhone,” Gamet reports.

Full article, with larger photo, here.

[Attribution: Electronista. Thanks to MacDailyNews Reader “Fred Mertz” for the heads up.]