“Eye-fi is a magical orange SD memory card that will not only store 2GB worth of pictures, it’ll upload them to your computer, and to Flickr, Facebook, Picasa (or 14 others) wirelessly, invisibly, automatically!” I first saw that quote at Signal vs. Noise; it originated at the product page at Photojojo.
Would I like one? Yes please, along with some of the other cool photo-related stuff from Photojojo.