Mobile Number Portability coming soon

Number portability was coming soon three years ago, but now maybe it's really very near. 
Been waiting so long, we don't really give a blank. 
What I object to is the little symbol they at the NCC have designed to illustrate the program: it has arrows cycling merrily between the four major mobile companies: MTN, Airtel, Etisalat, Glo. 

Source: Frequently Asked Questions on MNP, NCC

From what folks are saying, the net change will be more like this:

Anyway, information:
Mobile Number Portability (MNP) is a service that enables you to keep your mobile phone number when changing from one mobile service provider to another.  So, if you switch between service providers, you do not have to go through the trouble of informing all your friends, family, colleagues, and other contacts because your number stays the same. 
Mobile number portability will initially be available among the four GSM mobile operators. - (NCC)