I'm a fan of anyone making a product in this market. You have to be a die-hard fan and you can't expect to get rich.
I may not agree with the utility of a custom PPC that isn't significantly cheaper than a used Mac, but I don't hate it.
I just hope that the availability of the X1000 and SAM aren't the lynchpins that are keeping AOS on PPC. That boat sailed and sank long ago. We either need affordable PPC's or a different CPU to target.