Note: Amazon charges 15¢ per Megabyte of data to convert and send directly to your Kindle.
If you instead input username@free.kindle.com, it sends it to your email so you can download it and put it on your Kindle.
If you instead input username@free.kindle.com, it sends it to your email so you can download it and put it on your Kindle.
Wifi is always free. (source: http://www.amazon.com/gp/help/customer/display.html/ref=hp_l...)