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This is a picture of the Newton OS (which predates the Palm OS):
I'm pretty sure can find something that predates that and maybe something else that predates that etc.
I believe once again you're missing the point and the point is Apple's philosophy to make iOS simple and usable; the limit of what should be there and what shouldn't.
Piling on endless features that just adding complexity and going to extremes (larger and larger displays) is the easiest thing you can do.
Regardless, you've credited Palm countless time with the "invention"(?) of the mobile platform. Let's assume you're correct. Don't you find it sad then, that Palm who were the first ones to come up with this great idea, never really produced a great product with it?
Palm devices were a joke.
When the iPhone came out Colligan (Palm CEO) said "PC guys are not going to just figure this out. They're not going to just walk in". Well, they did.
And the WebOS, we know what happened there. Edited 2013-02-20 09:34 UTC
That's a picture of the control panel of the Newton. This is what the Newton's home screen looked like:
The Newton used a notebook metaphor, like PenPoint OS. A paradigm that nobody wanted.
Also, I never credited Palm with the invention of the mobile platform - don't put extremist words in my mouth just to make you look smart. I credit Palm with creating the mobile platform upon whose concepts and ideas all other platforms after it were built. Newton and PenPoint were dead ends - a metaphor nobody wanted and nobody bought. Palm's mobile platform was the first successful mobile platform, and showed the industry what people wanted out of a mobile device - everybody else has followed and built upon that platform ever since.
A sneak peak into my upcoming massive Palm article:
It's not a Newton, it's a MessagePad. Newton is the name of the operating system, MessagePad is the name of the device that runs the Newton operating system.
Another device running the Newton OS is the eMate 300. It does have a home screen with a grid of icons. I have one right here.
The MessagePads also had icon grids to launch apps, but it defaulted to a notepad application when you turned it on. I have one right here.
I don't think it really matters what you see when you turn it on, Newton based devices and Palm devices all used icon grids to launch apps.
My Psion 3a uses a row of icons. If an app has user files they are listed under the app icon and can be opened directly from there.
It's not strange Apple went for this grid solution as it's easy to do, easy to use and the Macintosh in a way also had icon grids. Sure, you could move the icons and break the grid, but the basic idea was a screen with little icons that launch apps.
I liked Palm devices. They were great to play Hearts on when traveling by train.
Over time they became better and worse. The OS became better, as did the hardware, but the feeling increased it could and perhaps should have been better. This feeling was fed by competing products, like the Windows CE and Symbian powered devices.
And since when is iOS home screen is simple? It's much more complex as a whole, than any other platform.
Icons that change(and some don't - calendar vs weather) and the notification bubbles are not simple.
Errrr... yes they are with more than a days usage, I guarantee you'll understand them.