The Sooner development device was actually a version of an HTC Windows Mobile phone:
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Wondering when you'd chime in.
See, people kept comparing it to the BB, because BB was the hottest/coolest phone. Again, that depends where you are. But in the US, and other places, the BB was top of mind and the HTC Windows phone was not.
Seems convenient that some people at Google knew about the iPhone and others didn't. But anything is possible within a corporation. Even if they did not know and were developing something similar - which there seems to be limited evidence - in the grand scheme of things the iPhone made them change their approach. It effected their plans.
Once again, while Apple was not the first to invent all these technologies, it was the first to the pull them together in a new way. Also Apple was the first to break the stranglehold of the carriers but dictating what was on the phone and how it operated. So this helped Google, and others, because the iPhone changed the industry in ways other phones never had.