ipad2之VGA-quality 前置鏡頭(約30萬畫素)不是快被淘汰了嗎?

Back camera: Video recording, HD (720p) up to 30 frames per second with audio; still camera with 5x digital zoom


Front camera: Video recording, VGA up to 30 frames per second with audio; VGA-quality still camera

為什麼後置鏡頭的畫素都不寫出來?