To those suggesting that messaging should be replaced by instant messengers: No thanks. WhatsApp, iMessage and this kind of solutions have one feature that they carry over from SMS that makes all the difference to me: they don't have the concept of presence.<p>I don't need to be "online" to receive messages, people don't know if I'm "online", "away", "offline", they just send me a message and they know I'll eventually get it. Exactly like email.<p>That is one great feature. How many times have you found yourself or your buddies "hacking" the status indicator because you don't want to give away your real status? I hate when people are always "away" or "busy":it makes the status indicator useless and I just came to ignore it, it is just that annoying thing that when it's gray it prevents me from messaging you.<p>If we just remove the status indicator, all that stress disappears. I don't want IM to replace SMS-like solutions.