grog : no it's not the "save each". This one is for saving the "all" or "unread only" mode for each feed (but it's not saved when GRead is closed)

The offline feature ("almost" offline) is that you can launch GRead, synchronize all your feeds and you can read it offline. All read/starred/shared operations will be done when online (don't close GRead before...). But you can read (you will not have images in articles)

It's "almost" offline. But more offline than other Google Reader applications for Maemo, and it's why i did this application (often offline in subway...)