http://www.stormcam.org/adapter-kit/
iPad camera adapter supports USB audio, keyboards
A handful of discoveries in the past day have revealed that the iPad’s Camera Connection Kit can be used for USB devices beyond just cameras. One test by TidBITS has discovered that it will work with most any USB headphone, headset or microphone, making it possible to either listen to music or take a VoIP call with normally computer-oriented add-ons. The call quality is “terrific” and could make …
Live Demo: Filemate MicroSD w/ Universal Adapter Kit