A listing for the iPhone 3G has appeared on China Unicom’s regional Shanghai website (Translated Link), suggesting the carrier may be close to a deal with Apple to launch the iPhone in China. The page in question appears in a section of Unicom’s site dedicated to its upcoming WCDMA 3G rollout, alongside dedicated pages for the HTC G1, Sony Ericsson X1, and Nokia’s N97 and E71 smartphones; notably, the iPhone 3G page also includes…