please don't get irritated, but are you sure about this? I had exactly the same question and I went to the WSJ web site and it certainly doesn't make that clear -- it does mention being able to save "sections" or something like that If WSJ was offering a full download (like all Kindle content, which is downloaded and stored), I would have thought they would go out of their way to make it clear on their web site.
If I'm going to pay $140 a year, or whatever it is, I want to be sure I can do a download and take it on the plane with me.
Can you tell me when the new content is available for download each day? Thanks for your help.