Originally Posted by DuckieTigger
What I don't understand about 3G on the kindle so far: sometimes it costs money to have things delivered (haven't figured out yet when charges would occur) - does that also mean if I use cloud/archive over 3G that I have to pay for that? ...
What I understand from Amazon is,
Whispersync of books, purchase books, shop for books, download books from Cloud or view your Amazon setting are free with the 3G.
However, if you have subscriptions or "Send to Kindle" your personal Documents over 3G, will incur additional cost.