Thanks for the feedback, and the list of ideas for the product :) .. Journally does not (Yet) have import or export options. However, a lot of improvements are coming in the near future as this is still a new product.
Thanks for your interest .. the 'Take it with you' currently means you can use the service from mobile devices .. data extractions & offline access are a work in progress.
As i understood, the main issue here is cost .. providing satellite links to each and every plane flying out there and to datacenters will be expensive.