An interesting product was voted best of show at CES this week, a wireless SD card for your digital camera.
The card allows you to upload photographs direct from your camera to a photo sharing site on the interent via your wireless network (or a wi-fi hotspot).
I have been using a similar function (via shozu) with my cameraphone, but Eye-Fi allows you to use any camera which uses a SD card slot.
Very clever, though not yet available in the UK or so I believe.