Apple recently began running a new television ad for the iPhone 3GS. Entitled “Avid,” the commercial focuses on three applications—Golfshot: Golf GPS, MLB.com At Bat 2009, and Real Tennis 2009—for the avid golf golfer, baseball fan, and tennis player. Like most recent iPhone commercials, the ad features the apps running on an iPhone in front of a white background. The new advertisement is now available for view on Apple’s…