The primary iPhone was formally introduced ten years in the past this week, and the anniversary is producing quite a lot of nostalgia-fueled retrospectives and is unearthing attention-grabbing artifacts. Working example, the video embedded above by sometimes-reliable Apple leaker Sonny Dickson reveals off two competing early demos of the iPhone’s person interface.

The 2 working techniques are known as “P1” and “P2.” P1, on the left, makes use of an iPod-like person interface full with digital click on wheel. Customers would scroll by way of cellphone apps and settings a lot as they’d on a mid-2000s iPod. P2, on the fitting, seems to be like barely greater than a tech demo or a diagnostic mode, nevertheless it’s solely touch-controlled and makes use of the cellphone’s total display to show content material. Of the 2 prototypes, P1 boots a lot sooner and appears extra polished, however P2 is clearly the kernel that will ultimately change into the iPhone OS (and later, iOS).
Tony Fadell, one of many iPod’s creators and the former CEO of Nest, tweeted some further info that explains a few of Apple’s pondering and confirms the video’s authenticity. Apple tried out quite a lot of completely different competing concepts when creating what would change into the iPhone and iOS, and Steve Jobs requested that each iPod-style and all-touch variations of the working system be designed. Fadell says that there was “little doubt in anybody’s thoughts which was the fitting path,” although. “These on the iPod primarily based UI knew it was doomed. [Jobs] pushed us, ‘make it work!'”

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