iPad camera connection kit not working with iPhone 4

I had an iPad camera connection kit. Yesterday I want to transfer some photos from my iPhone 4 to my iPad using it. When plugging in the kit to the iPhone, it tells me the device is not recognized. Reboots of the devices have not cured the problem.Now the iPhone 4 has been proven to be incompatible with the iPad Camera Connection Kit leaving the device without a USB port or SD card reader. The