The phone number as an id is a very important component to their adoption indeed...

enewcomer on Feb 20, 2014 | parent | context | favorite | on: Your Path to a $16B exit? Build a J2ME App

The phone number as an id is a very important component to their adoption indeed. So do you posit that WhatsApp's adoption rates being what they are (compared to say Viber which does the same thing) is purely due to first mover?

doczoidberg on Feb 20, 2014 [–]

yes that's my opinion.