It seems that most smartphones have a camera on them somewhere, some even have 2 (Front and Rear Facing). The Original iPad has NO Cameras.
I'm wondering if the USB Camera Adapter, that is used to transfer your photos from your Camera to your iPad, if that would work streaming video from your Smartphone to your iPad for Video Conferencing, either by using Skype, or something compatible. I've looked and I cannot find an "App for That"! :)