I have a Plus/4 I picked up cheap for collectable purposes and to be honest... it had a great keyboard. LOL Too bad that's all it has going for it.
Actually, if I remember correctly it did have a couple of hardware improvements over the C64 but they were minor and totally countered by the lack of compatibility.
The biggest problem it had other than not running C64 software was that the built in software (it's major selling point) was barely usable.
The entire line C16 through Plus/4 and the unreleased 264/364 (I think) was handled very poorly.
The high end machines were already starting to drive new sales rather than the low end cheapies but they insisted on releasing the low end models and canceling the high end ones.
Commodore never learned even with the Amiga. They always tried to make the next C64 (A600) but killed leading edge tech like multi-cpu, DSP, etc...
If the miggy had continued to draw attention that way instead of as "a game machine" it might have survived. Imagine a multi-cpu OS in the late 80s or early 90s. It wouldn't have mattered that Motorola was behind Intel in MHz. But this was about the Plus/4 wasn't it...
