That was the PalmOS I remember.

It was single threaded with no memory protection either, so you could write into other programs memory space and easily crash your device. :)

I still loved PalmOS. I had two Visors, a Treo, a Centro and even a Palm Pre with WebOS. HP hasn't done anything with all their Palm IP for a while .. sad to see it totally gone now.

That's still plenty to spot major differences between the stylus-based PalmOS paradigm and modern touch-based smartphone interaction. There's a drop down menu on that PalmOS home screen, and the app launcher has to be scrolled by interacting with the scrollbar on the edge of the screen (or using the hardware scroll buttons). Looking at a screenshot of one of the applications would show even bigger differences. Really, the similarities don't go much further than a tile-based launcher and a status bar at the top of the screen. The PalmOS UI had more in common with the Newton UI than iOS.

That's the PalmOS I remember too, but I wasn't sure if "Garnet" was something different or not.