See Scott Forstall Discuss Original iPhone, Once Called 'Project Purple'

The breaking point came when the Microsoft employee told Jobs that the software giant had "solved computing" with its Tablet PC effort.

And thus was born "Project Purple", which would evolve into the iPhone.

Scott Forstall, the former iOS guru that was responsible for iOS development up until Apple's famous Maps fiasco a few years ago, spoke about the creation of the iPhone in an interview at the Computer History Museum. In particular, it's interesting hearing Forstall discuss his relationship with the late Apple co-founder Steve Jobs. Forstall said that changed and Apple shifted to a phone following a conversation he and Jobs had. "He came in on Monday with a set of expletives and then was like 'let's show them how it's really done, '" Forstall continued.

The team quickly chose to work on capacitive rather than resistive screens and to support multi-touch.

During its tumultuous history, Apple has been close to bankruptcy on several times.

Having surpassed the one billion sold mark since its release in 2007, the iPhone has become synonymous with Apple's global dominance, but according to a new book, it took the persistence of Apple staff to convince Jobs that smartphones were worth the company's time.

Of course, Apple first followed suit with Microsoft and tried to implement its touch technology on a tablet, but Jobs soon made a decision to shift focus to a mobile phone, putting the tablet project on hold - at least, until the success of the iPhone prompted Apple to follow up with the iPad. Jobs chose to show Microsoft how it's done by making his own tablet.

Without him, the iPhone of today could have been a very different beast.

"Jobs said: "'Do you think you could take that demo that we're doing with the tablet and the multi-touch and shrink it down to something small enough to fit in your pocket?'

Forstall said that the iPhone idea was the result of Apple's rivalry with Microsoft.

So this is how the world got the extraordinary device that we call iPhone.

The iPhone may no longer be the king of smartphones it once was, but it's still an incredible business for Apple, a company that used to be known for its iPods and Mac computers. He worked closely with Jobs and had a reputation within the company for being hard to work with.

  • Arturo Norris