@ CISC

I think that you, sooner or later, *will have to* choose a future architecture path:

1. ARM (Mobility, consumer electronics, media devices, etc)
2. x86 (Power, stationary desktop computers, servers, traditional laptops)

And if you agree that it's plausible that you indeed will have to make such a choice at *some* point down the road, then don't you agree that it would make more sense to make the decision *sooner* rather than later?

Of course, a third option of choice also exist (and that is the option to not make a choice at all):

3. PPC only, always and forever.

However, that doesn't seem like a path towards any kind of future, does it? Or if you think it does, could you please explain how?