Seriously?
Microsoft was the leader with virtual touch screen keyboards for 3-4yrs prior to iPhone (PocketPC and PocketPC Phone Edition) - made by then OEM HTC for Vodafone, O2, Orange in Europe.
SonyEricsson has UIQ (Symbian based in china with minor league success.
Nokia had released 2 tablet like phones 7700/7710.
Motorola also used UIQ on a few phones and they had their 5th Java based phone as well.
Sure they all had styli but you could use finger for basic functions like phone, sms , and minor functions. They where smartphones ALL of them.
Where have you been?!
Apple brought multitouch THAT was the game changer in 2007, App Store took more than 1 yr to be released and with it the 3G model.
Multitouch was just one technology among several.
The game changer was that, unlike Windows Mobile (which largely just scaled down Windows Desktop) and UIQ (which just added some smartphone features to a dumbphone UI), iOS imagined a UI from scratch. It took inspiration from macOS, NewtonOS and others, sure, but it started from an assumption not of "how can we make Windows run on a small screen?" or "how can we add some non-phone functionality to a phone?" but rather "what's the best possible UI on a screen this size?". That's why it doesn't ship with a stylus or a keyboard, why it doesn't come with many macOS UI affordances such as menus or windows, why Phone is just one app among many, and so forth.
That's the game changer.
Android quickly understood this. Microsoft first tried to avoid this with Windows Mobile 6.5 and the canceled Windows Mobile 7; by the time Microsoft and Blackberry realized they needed a massive UI revamp, they were too late.
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Just checked the Mac Pro - page: https://www.apple.com/mac-pro/ = empty?
Amusingly, it works in Chrome.