The RapCap is featured in a video review over at Butterscotch.com
They say “where other digital audio players come with a built-in microphone for recording quick voice memos or to save a college lecture for posterity (and subsequent sharing with friends who couldn’t seem to separate head from pillow that morning), the iPod offers no such perk. Enter the RapCap. This tiny little microphone plugs into the headphone port of compatible iPods, or even the iPhone, and lets you record audio to your iPod, including the iPod Touch. These recordings can be pulled from your iPod easily via iTunes. Not bad for $15.”