It's interesting. Whatsapp didn't start out to be a messanger app for the world. It didn't start out to be a replacement for SMS, it started as a tool for frequ

It's interesting. Whatsapp didn't start out to be a messanger app for the world. It didn't start out to be a replacement for SMS, it started as a tool for frequent flyers to be able to set a status on their iphone in the same way you could on Yahoo messenger. Frequent flyers weren't particularly enthusiastic "It appears that this requires the other party to also have the app installed, right?" https://www.flyertalk.com/forum/travel-technology/952359-thoughts-about-my-free-iphone-app-whatsapp.html https://www.flyertalk.com/forum/travel-technology/952359-tho...