Background
I'm strongly considering the purchase of a Kindle DX for PDF reading to save my eyes from LCD strain.
I currently sync a folder of PDFs on Dropbox to my iPad via an app called GoodReader.
Goal
I would like to sync the contents of the same DropBox folder to the Kindle DX so that I can update my PDF collection in one place for both readers.
I'd prefer to not have to do anything additionally to get the files onto the Kindle (i.e. I don't want to have to e-mail myself a file, though if that could be automated away once I wouldn't mind).
Question
Is there a process that exists to allow me to update DropBox and have the contents automatically synced to the Kindle DX?
Thanks in advance for any help you can give!