It would be great whether you'll be successful in your effort of porting Anki to Kindle. It sounds great whether I could learn vocabulary offline and then let the Anki synchronize itself when I would reach wifi network.
In case that it won't be successful there could be an patial solution here. Application About Memo (
http://aboutmemo.com/download.html) where you can import cards from Anki (
http://www.youtube.com/watch?v=8w6f5iKnVTY).