Originally shown last year and just now appearing in stores, iHome's iW2 ($200) is now the lowest-priced AirPlay speaker system on the market -- a smaller and generally simpler version of the iW1. Kept the same are the extruded pill-like shape, the glossy black top, black chrome bottom, fabric body, and rear-mounted USB port for use with an included Dock Connector cable; this enables iW2 to more easily be set up on your Wi-Fi network than most AirPlay…