iPhone App written by Nine-Year-Old

Lim Ding Wen, a nine-year-old, has written an iPhone App called Doodle Kids, an application which allows children to paint on the iPhone.

"I wrote the program for my younger sisters, who like to draw," Lim told Reuters.

Lim started using a computer at age 2. He is fluent in six programming languages, and he's completed 20 programming projects. Lim is wise to get an early start on the App Store, where some developers are striking it rich with their iPhone apps. For example, independent developer Steve Demeter, said he made $250,000 in just two months with his iPhone game Trism.

Lim's father Lim Thye Chean is a chief technology officer who also writes iPhone applications.

With Doodle Kids complete, Lim is already working on his next iPhone app: a science fiction game called Invader Wars.