Japanese retailer Game Star has put up a description of the game, which finally ends the confusion gamers have had over what the purpose of Afrika is.
The translated description states that you are a photographer, who takes photo's of the animals using Jeeps, Hot Air Ballons and more to get the perfect photo's.
While this isn't 100% conformation until we hear word from Sony, it does appear that the game will as expected be not to dissimalar to N64 title Pokemon Snap or Nintendo Wii title Endless Ocean.
This game is rumored for a 2008 release in Japan, with no plans currently to bring it to europe.
Update
Some people are reporting a broken link, so use this one is main one fails
http://www.psbeyond.com/news/Japanese-retailer-describes-what-Afrika-actually-is.585.html