I'm not a potential customer.
I might have been 3,4 years ago, but the glacial speed of development of OS4, incomplete drivers and ridiculous hardware spec and prices have completely ruled that out.
In theory, I would have nothing against a nice OS4 machine, but it's price would have to reflect the fact that OS is archaic.
If I could buy a system for $300 based around a cheap x86 (such as this $70 mobo+cpu), HD (+$50), RAM (+$40), case (+$50), OS4 license (?), etc, then I might stick the oar back in.
Or even something like the ODROID U2.
x86 and ARM are cheap. PowerPC is expensive. Continuing to bark up the PowerPC tree is just marginalising the existing users, and limiting the potential market. If OS5 ever comes out as a new system with SMP and MP and all the other things it should have (i.e., running OS4 compatible apps in a sandbox because they wouldn't work), then it should use that opportunity to lose CPU architecture dependencies.
Yes, I know this won't fix support for all the other components on commodity motherboards, only very specific combinations of hardware would work (in the x86 realm) or specific boards (in the ARM realm). But they could be made for a fraction of the price.