Just found this online and I thought it was worthy of a mention.
AirStash Wireless SD Card Reader:
The AirStash is a USB card reader combined with a Wi-Fi hotspot. Its purpose in life is to stream media to other devices, which means sending movies, music and video to phones, tablets and other memory-limited gadgets.
You just pop your SD card into the slot and then dial in from Safari. From there you can browse a list of photos, view them and save them to your photo-roll. Better, it works as a mass-storage USB device, so you could actually plug it into the iPad via the connection kit.
Pictures from wired.com/gadget lab/