Definitely not the first celebrity to launch an iPhone app, and certainly won't be the last, 50 Cent has made true on his promise and has also expanded his empire. The app, dubbed Uber50, features a soundboard of 50 Cent's voice as well as gunshot sound effects (some the rapper seems to be very familiar with).
The app was the result of Curtis Jackson's (50 Cent's real name) recent buyout of UberSocial.