But the thing (n810) had WiMAX? I don’t think the problem was text/voice.
The problem was that it had a resistive touch screen. Samsung already had touchscreen MP3 players that you can install apps on, but it was the capacitive touch at that price point that gave Apple a good 3+ year head start on software. At the time, being able to dial phone numbers with IPhone was mind blowing versus a resistive touch
That’s what was revolutionary about IPhone. They didn’t invent capacitive but they brought it to the $1k range.
Nokia was developing their own OS and App Store, too, but it was the iPhone’s cohesive experience that made everything else fit together