The prototype of iOS - “AcornOS” for iPhone appeared on the network

It's no secret that Apple worked on several prototypes at once, went through several

iterations, and considered several conceptsbefore it finally approved its iOS firmware for the iPhone. Today, Sony Dixon - known for his reliable iPhone prototype leaks - has provided us with what one of these OS and iPhone prototype smartphones were reportedly considered by Apple.

The prototype iPhone OS was controlled by the system underthe name "Acorn OS", which instead of the touch screen, had a scroll wheel displayed at the bottom of the screen to navigate through the system interface and scroll between its elements. The user interface was very similar to that used on iPods equipped with a click-wheel for control. It is interesting to note that while Acorn OS had all the usual applications, such as Phone, Contacts, and Messages, it lacked a browser application, which was one of the key factors that influenced sales of the original iPhone.

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Looking at Acorn OS, it’s clear that someelements were still used in the iOS version used in the original iPhone. There were several iPhone prototypes at Apple running the Acorn operating system, but all of them were probably destroyed over time.

In the end, Apple decided to usethe touch interface for the iPhone and that was the right decision, since the scroll wheel at the bottom of the Acorn OS took up too much space. However, it is possible that the displayed scroll wheel was just an emulation of a physical scroll wheel, similar to the same wheel on an iPod.

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