The Sam is not that much more powerful than Efika is
Nonsense - look, you cannot just look at the CPU alone to quantify "power". To me the efika is and always was useless, and it was never the CPU that was the problem. Too little RAM, borken IDE, dead slow USB and only one PCI slot (which can only be used for gfx card if you want to run MorphOS) - that's what kept me away. The SAM flex board fixes all that, at reasonable price - compared to anything else, the efika is still way overpriced with what little it offers.
I would say the SAM is perfectly priced, high enough to keep many people from buying it, so that the production can be kept in managably low numbers. If the price was lower, they would not be able to keep up with the demand, this is already a problem enough as it is. Also, more sold units means more annoying users etc. it makes perfect sense to grow the production and evolve the products slowly for a company like acube.
Anyways, if we want to stay on PowerPC, SoC is probably the only affordable way forward, the days of "pure" PowerPC CPUs are very much over.... I'll go as far as to say we're _lucky_ that we have PowerPC systems available at all, it's not something that's obvious to keep alive.