(CNN) - Change your ring tone to "Happy Birthday." The iPhone is turning five.
Apple unleashed their touch screen technology on the mobile-phone using world five years ago Friday.
Back then, Blackberrys were around but Android phones didn't exist.
The first iPhone cost $600, but the price soon dropped to $200.
In what could be a sign of Apple addiction, a recent study by gadget-resale site Gazelle found that 15 percent of respondents would rather give up sex than go without their iPhones for a weekend.