This is a huge feature, I know, but if this could replace not only our unsecured IM apps but also that crappy Skype and Facetime, it would be amazing!
Would like to see ZRTP protocol supported for VOIP
Facetime is not that bad, it mainly has problems in not letting you verify keys.
I do question, however, how you can use any kind of server push to maintain a secure messenger.
VoIP would fix the problem of the app not staying in the background so desperately needed even if not encrypted