That is sad news - I still regard Mitakuuluu as one of the better messenger apps out there and you definitely had some eye for privacy as well by adding an app-specific address book (a killer feature for me). So I would like to thank you for the work you have done in the past!

I'm with you with regard to the usage of Telegram - however, most of my friends unfortunately aren't. Well, they'll have to be patient, as I'm now using WhatsUp via Pidgin on my PCs - so no more "instant" messenger. I tell everyone: "If it's urgent, use SMS or Telegram."