I launched Mauritius News a few days ago.. (http://itunes.apple.com/us/app/mauritius-news/id484422105?ls=1&mt=8) was surprised to have huge amounts of downloads on my logs.. asked a friend in Mauritius to check whether it was featured on Mauritius's itunes app store. Indeed it was, not only featured, it was ranked first in free apps in the main App Store. Apple does a pretty good job at somehow marketing apps for developers.
