It's time for iPhone trivia!

Back when the iPhone was still a drawing-board idea, this was the project's code name. According to one former Apple executive, the "Purple" team's workspace resembled a college dorm in many ways. Not only did it smell "something like pizza," it also had a Fight Club poster on the wall to remind everyone of the first (and second) rule of Fight Club.

Steve Jobs unveiled the first iPhone at 9:42 a.m. on June 29, 2007. The event was timed perfectly so that when attendees saw pictures of the new device, the time on the display showed the time in real life. Apple maintained similar punctuality at subsequent product launches. Except when it introduced the world to the iPad in 2010 - then the company sped things up by a minute.

Sure, the first iPhone would have set you back $599, but that one little device could do as much as $3,000 worth of cutting-edge gadgetry from your local electronics store in 1991. It was a computer, CD player, phone and answering machine all in one. What's more: If Apple had tried to assemble an iPhone in the early '90s rather than in the 2000s, all the parts would have cost more than $3 million.

We've all been there. A hurried pull from a pocket, a slip of the fingers and - crack. That iPhone screen will never be the same. But hey, at least you didn't drop your precious smartphone from 13,500 feet in the air. That's what skydiver Jarrod McKinney did in 2011. He claimed he could still make calls, however.

In the early 2000s, Apple was looking to develop a tablet computer with a virtual keyboard. Then one day, as a bunch of Apple engineers were complaining about how lame their cell phones were, an idea struck them: The same technology could be used to make a superior phone. They stopped working on what would eventually be called the iPad and got to work constructing a revolutionary new smartphone.

Apple has sold nearly 900 million iPhones since the lifestyle-altering handsets were introduced in 2007. But with the economic slowdown in China weighing on sales, Apple has for the first time warned that its current quarter sales could be lower than they were a year ago. Apple is still selling loads of iPhones - a record 74.8 million last quarter - but the fact that sales could decline is huge.

Even Siri knows that Apple and Samsung are rivals. Ask her if she loves the South Korean tech giant and you'll get a curt "I'd rather not say." The two have been locked in a series of high-profile patent lawsuits for years. But on one front, they remain allies: Samsung reportedly manufactures the computer chip that powers the iPhone.