WhatsApp has become the defacto medium of communication with my friends and family in Africa, emerging way ahead of phone numbers, sms, facebook et al. I am not

WhatsApp has become the defacto medium of communication with my friends and family in Africa, emerging way ahead of phone numbers, sms, facebook et al. I am not thrilled by the service, but if you want to stay in the loop, you have to join the bandwagon.