Wow, that’s remarkably close to what I’ve been thinking we’d need on our cruising sailboat. We have intermittent connectivity, especially when offshore, and so couple of additional things would make this an exact match:

* Being able to say “sync now” when we have a moment of connectivity (for example, passing an island with LTE)

* Being able to Readability and local cache all content (including images) by default so one can read when offline