Polaroid has launched its Pop camera that shoots and prints 3-inch by 4-inch instant photos using ZINK – an inkless photo paper technology.It also works as a digital camera so you can shoot in digital or instant format – or both at the same time. The camera has a 20-megapixel CMOS sensor built in, dual-LED flash and can record 1080p HD video.The camera is set to be released at the end of this year and the price has yet to be announced.