http://www.staticice.com.au/cgi-bin/search.cgi?q=toshiba+fla…
Found it to be the cheapest on staticice which is $52 + Shipping.
According to the website:
With FlashAir, you do not need to pull your SD card from your camera and upload pictures to your PC in order to share them. The Toshiba Wireless SD Cards includes a wireless LAN chip which allows you to share your pictures with your friends next to you or use your smart phone or tablet to upload the images directly to a social media platform, just after they happen – anywhere.In addition, with the FlashAir card in your camera, you have the possibility to immediately preview your photos on your monitor and directly edit and / or forward to anybody.
huh? There's a WLAN chip, actually in the card???
Wow. Technology these days..