Yeah, good point, and some other things too... I'm still not convinced we need it right now. I think the slowness of RAM/flash outweights the speed of the CPU anyway. As an anecdote, I was playing/learning with the Raspberry Pi's assembly - and somewhere it said "oh, man, don't make a division, it's soooo expensive". Honestly, maybe it took a couple more microseconds when I tried it. Not sure we'll bump into these issues any time soon in the mobile space.

Re Intel - yeah, baby, I'd like to see some competition :-) Bring on AMD as well, although they've never been too good at low power CPU's. The best thing of this is that prices will probably drop. Intel/AMD are already 64bit capable, and I wouldn't go back for the same reason: it takes less effort to stick to what works :-)