Yes, iPhone Apps Make Money
According to Flurry, iPhone applications can and do make money. Not all apps make it, of course, but those that do can actually make good money. A strong publisher with two titles a month can expect $10 million to $15 million in sales through the iPhone channel, if the titles are well-marketed, says the report.
But "well-marketed" is the key word here. The iPhone app industry is beginning to resemble the music industry with its "hit-driven" nature. One "hit" gets a developer on the map and gives them the chance to sell more apps. Successful apps often resemble successful songs: you need a good artist, a good producer, a strong distributor, and plenty of promotion.
Source: Readwrite - The State of the Smartweb