SockRolid
macrumors 68000
While Apple is now committed to Intel in computers and is unlikely to switch in the next few years, some engineers say a shift to its own designs is inevitable as the features of mobile devices and PCs become more similar, two people said.
It is inevitable, at least in the consumer Mac lines. Maybe by 2014, maybe later.
Apple could conceivably keep 'Pro' models around that still run Intel chips temporarily.
(They'll be the ones with fans for blowing all that hot air away from said Intel chips.)