Currently there's an ongoing project to create a free and open PowerPC laptop based on NXP T2080 for non-x86 hobbyists. I've donated for this project.

https://www.powerpc-notebook.org/

Indeed - the Talos machines are the first new PPC desktops in quite a while. The IBM POWER CPU series is far from dead, just post-Macintosh / PS3/Wii/XB360 consoles, it's not really something you see in the consumer space any more - apart from Talos, which I'm pretty excited about.

(Disclosure: I work for IBM.)