And here's where you go straight off the rails. See, space curved there. In specifics, the PDA market went away, and was replaced by the smartphone market.
Nonsense. Palm had the Tungsten. It was a perfectly good color handheld, with color touchscreen as big as a modern smartphone. I used to play Bejeweled on my Tungsten and IMO it was just about as good as Bejeweled 3 is on the desktop now.
Then came the Treo... their smartphone. They reduced the size of the screen to 1/2 or even less of what it had been before, added chicklet-style keyboard ala Blackberry, and dropped the Graffiti written input.
In other words, they were trying to copy Blackberry. They dropped the things that made them truly unique: a full-size color touchscreen, and Graffiti.
Now, finally, we have smartphones that match or best the Tungsten's color screen in size and resolution. We could have had that many years ago, if Palm had simply added a phone to their existing device, and left the rest alone.