Wifi on a SD card? Too cool! Gizmodo reviews Eye-Fi:
The Eye-Fi. It’s an SD memory card that adds Wi-Fi to any camera. Plus the free Eye-Fi service supports automatic uploads to 20 different web photo sites (like Flickr) as well as a computer on your home network.
The product is priced at $100 which is pretty reasonable, especially as the dollar is itself not very expensive right now!
Read more at the full review, they seem to really like it 
Unfortunately you need to have an SD slot, which rules out most of us. Not sure if there are any plans to make a Compact Flash version which is much more popular on professional level DSLRs.
2 Comments
Hey, now! My son’s Fisher Price camera has an SD slot… Might have to try this!
If he is anything like our girl you would soon run out of network storage that way