Unsustainable. There is only one PPC manufacturer left for small quantities of PPC processors and the selection of embedded processors is currently limited as can be seen with the handicapped Tabor board's non-standard FPU.
To be fair Freescale started using a standard FPU again in 2008.
The P2040 is considered low end, the P2041 is considered mid range.
It would have made far more sense to design a board around these as they are pin compatible with each other and also more powerful chips (including the 64bit chips from 2012), so the same board could target a wide range of cost points.
During the Amiga Technologies days, that idea was considered. The backlash from the community was immediate and vehement. It would not have been a popular choice.
Yes it was not so obvious back then that x86 would completely demolish PPC in terms of price to performance, so people stood up for their individuality. We are our own worst enemies. I'm not convinced that switching to another cpu now would have a vastly positive effect, although I am constantly surprised that AmigaOS 4 is still going anyway.
