EV and OWA options

Hello,

I am talking with a potential client who is looking at EV for the sole purpose of giving their Exchange 2010 databases some extra room for space. They are mad that Single Instancing has been removed from Exchange! I am not sure they are thrilled about having to push out the EV client to their users, so they may go with shortcuts. In this case, the only two options for OWA users are using shortcuts or the Archive Explorer webpage to access archived items, correct?

Thanks!