I've been searching for a wireless audio input solution for the iPad. It seems that virtually any wired USB microphone will work with the iPad dock connector (some require the camera kit adaptor), but I haven't been able to find a wireless USB receiver that does the same thing. Literally dozens of devices are available to transmit audio via the USB port, but I haven't found a single receiver that is advertised to work with the iPad. Hard to believe that such a thing doesn't exist. I've found a couple of Bluetooth solutions but that won't cut it. Any ideas?