Greetings,
I wrote a free converter that takes an OpenOffice document (well, LibreOffice)
and converts it to Kindle format.
It's impossible to handle everything from the ODT format, as kindles are more
restrictive, so don't expect a 100% perfect conversion.
You can get it here: http://soft.alkinea.net
It uses kindlegen as the last step in the conversion, to ensure a better
compatibility with all kindles and future Amazon changes.
It's still in beta, but it's rather stable now.
Hope it helps.
Alki
