I'm not sure how many of you might have seen this, but it is quite interesting.

The Eye-Fi is a wireless SD memory card that can transmit images directly from your card (in your camera) to your computer, the Internet, or even your photo center.

For details, see here:

http://www.eye.fi/

http://www.eye.fi/making-it-effortless/

http://www.eye.fi/a-wireless-memory-card/