Whatsapp has enough of a userbase and a usecase that enough people will be willing to pay to sustain it. What _will_ happen is that other free services will po

Whatsapp has enough of a userbase and a usecase that enough people will be willing to pay to sustain it. What _will_ happen is that other free services will pop up and be used, and some users will migrate to those. Which is a good thing. We'll have actual competition on the field instead of a single dominant player.