One of the same Vietnamese sites responsible for discovering a different iPhone prototype has shown its device running iPhone 4.0. The phone appears to be working with both a cellular connection to GSM carrier VinaPhone and Wi-Fi turned on. The shot by Taoviet makes it difficult to tell if the screen is higher resolution, though even if so the public iPhone 4.0 betas may not support the higher pixel count to avoid giving away a hardware secret.
