> that's a 1GHz Al 15" Powerbook. [...]
> It's unknown whether MorphOS 3.2 will expand support to other models.

The MorphOS Team at least hopes to support other models with MorphOS 3.2, including the PowerBook5,2.

https://morph.zone/modules/newbb_plus/viewtopic.php?topic_id=8709&forum=3&start=7