my guess this amount of revenues is not gona last for the long run,
bc Zain's current business model is chargingon each phone call:
Lower rates for Zien's network and higher rates for out side networks,
where they get most of their revenues from, other source of revenues is data
charges: SMS and GPRS.. With WiMAx and Voip enabled mobiles spread and become so common; that model
will die.
many mobiles today has WIFI and VoiP with them, and the day when we
have wide spread reliable WIMMAx enabled mobiles mixed with VOIP such as Skype,
phone calls to other VOIP phones will be free, all you have to do is pay
the internet connection monthly fee which would be around 15$ for unlimited
access., while also you can use WIFI if you are near a hot spot.
there will be something like SMS for the internet mobiles, ( business
opportunity for startups) so also the SMS and GPRS revenues will die too.
Vonage has unlimited local and long distance calls through VOIP for
24 $ a month.
Google on the other hand gets most of its revenues from Ads.( Ad
words and ad sense)
the next big things on Ad, is mobile Ads.
to build a VOIP network today is so easy you can use Arstirk an open
source PBX to rout calls.