PPC is alive and well, its just going embedded for now, its the only bi-endian architecture still being developed and will be in the server market for a long time, PPC is not dead on desktop, the x1000 and SAM are proof of that, its just niche. Look at it this way, Ubuntu still supports PPC, just the community builds it now, but I guarantee that PPC will never die, as long as yellow dog and other linuces support it
