The example email app from maidsafe.net could definitely use some love. Last time I tried it there were no automatic copies of emails in a ‘sent’ folder. Probably a lot of passers by who try it might be expecting more “bells and whistles” comparable to gmail or other current offerings. Other than Peruse, it would seem that email would be the next most important thing for the layman. A more complete offering would stand up well to a comparison with firefox and thunderbird. What do we call ours though… Peruse and Schmooze? 
Edit: I suppose to keep the optics right some alternative spelling of Schmooze might be more compelling. Something like “Shmuse”, and then find a cute algorithm.
(“Securely Hashed Mail Using SAFE Environment” ?)