Cocoa is Nigeria's second-biggest foreign-exchange earner

Cocoa is the second-biggest foreign-exchange earner for Nigeria,  Africa’s leading oil producer...ICCO Exports of beans in 2010 rose 2.3 percent to 200,333 metric tons, according to data from the Federal Produce Inspection Services, a government agency that supervises the shipments.

...the Nigetain government also need to sustain and increase its export potentials in related non-oil products. Other export candidates are Groundnuts, Palm Oil, and Cassava

The Naira may strengthen to 145 per dollar by the end of 2011

Nigeria’s naira headed for the biggest three-month gain in 14 quarters against the dollar after demand for the U.S. currency ebbed before the central bank lifts curbs on foreign investors’ debt holdings.

The naira advanced 1.1 percent to 152.025 per dollar today in interbank trading in Lagos, according to data compiled by Bloomberg.

Naira has appreciated 2.6 percent since March 31, the best three-month gain since the quarter through December 2007.

The naira may strengthen to 145 per dollar by the end of the year after policy makers decided to lift a requirement for foreign investors to hold local-currency investments in government securities for at least a year starting July 1, Central Bank of Nigeria Governor Lamido Sanusi said June 23. “Positive interest rates” will aid the gain, he said.

...that's a thumb up for CBN Governor. However, caution needs to be excercised  not to use this monetary policy to address only inflation but also consider the impact of rising naira on other indices such as foreign direct investments (FDIs), competitiveness of Nigerian exports, local industries and ofcourse employment.