Note that Palm OS 6.x was never released on any devices. This was in the era when palm split into Palm One for hardware and Palm Source for software, and Palm Source completely failed to sell anyone their next generation OS, at the time everyone stuck with "classic" Palm OS (Garnet). Palm Source then pivoted to a Linux based OS around the time they were bought out by embedded web browser maker Access, which also completely failed to go anywhere. Palm (One) eventually just wrote their own Linux based OS with webOS, which... had a nasty accident involving HP.
this is false. There was one phone [1], there was also a ROM for TT3 [2]. I have held each in my hands. The second link contains photos I myself took, in the real world of a real device.
Was that one phone actually commercially released by anyone? It just says that the OEM was shopping it around, so presumably more of a prototype than a final product?
A few of them exist in the real world - they gave out a thousand or so at PalmOS DevCon. To me that sounds like it shipped, even if in small quantity. These were not hand-built 3d printed prototypes. These were real devices with real injection molded silver plastic cases, operational slider mechanisms, working cell modems, and all.
I think "shipped" usually implies that one could buy them in some sort of official way. So for example the original chromebook CR-48 wasn't really "shipped" in that sense since you only got them as a devkit in conferences and similar, but the Oculus DK-1 "shipped" since even though it was a devkit you could buy it from Oculus.
At least that is the way I've seen the term used when it comes to development hardware.
