Gameloft withdrew from boxed games in January 2009, and says mobile games accounted for 94% of the company's sales for the whole year. The remaining 6% are related to consoles game sales.
Full-year revenues from the mobile game segment grew by 12%, self-reportedly due to the success of the games the company distributes through Apple's App Store. To demonstrate this growing importance for the company, you need only look at its revenue figures for the fourth quarter of 2009: iPhone revenues for the company reached €7 million ($9.75 million), while initial expectations were €4.4 million.
On the market for an iPhone? Here's a breakdown of all the currently shipping iPhones from Apple.