As it is commonly known SD cards are getting larger and larger in storage capacity and yet smaller in size. The Eye-Fi takes Secure Digital or SD memory a step further by building in Wi-Fi capabilities. The moment you walk in your home this little SD card can automatically transmit your photos from within your camera to your computer(via your wireless network). If you desire it can also simultaneously upload them to your favorite social networks. Now one would suspect that this leaves little room for pictures, but their is also 2GB of on-board memory. For those of you who ever said "Where is my USB cable?" This might just be for you. It has a MSRP of $100 USD, and might make a good holiday for any photo lovers. One can only imagine what other interesting uses this product will have with some modification.