‘On average there are now 60 mobile subscriptions for every 100 people in the world. In developing countries, the figure stands at 48 – more than eight times the level of penetration in 2000.’
from The guardian
http://www.guardian.co.uk/technology/2009/oct/22/africa-mobile-phones-usage-rise
Remember the phones, or weapons that also rang, from the 1980’s?