Microsoft has just registered bi.ng
whois.domaintools.com
whois.domaintools.com
Rules weren't changed & nobody got any special treatment.
Kindly read Section 4.5 of the Policy pasted below :
http://www.nira.org.ng/media/pdf/NIRA%20Domain%20Names%20Pol...
(1) You need to have a business in Nigeria
(2) ccTLDs are subject to local laws, so be careful before basing your brand around a ccTLD name. Case in point: Bitly http://workbench.cadenhead.org/news/3503/bitly-builds-busine...
And likewise I searched the government website and none of its accredited registrars offer straight .ng registration
http://www.nira.org.ng/index.php/auction
So far, The domains listed below have been registered by Websoft:
1)3m.ng 2)leadership.ng 3)google.ng 4)gmail.ng 5)youtube.ng 6)honeywell.ng 7)googli.ng 8)bi.ng