PC World - If you yearn for the days of yore when mythical devices known as cassette tapes ruled the land, you’re in luck: A design company called Homade has created Tuned Up, a plastic cassette case for the iPhone. Instead of containing magnetic tape with sound recordings, the silicon cover envelops your Cupertino-designed 3G, 3GS, or 4G phone while you listen to digital tunes.