IK Multimedia has announced that it is now shipping its iRig MIC Cast ultra-compact microphone for the iPhone, iPod touch and iPad. The iRig MIC Cast is a miniaturized unidirectional microphone designed for recording podcasts, interviews, lectures, voice memos and more. The accessory connects to an iOS device’s headphone jack and the bumper-friendly design is also compatible with a wide variety of cases. A stereo mini-jack output allows users…