Yeah, about a decade after the appearance of the first 32 bit x86 chip. Was that the point you were really trying to make? ;-)
The funny thing is there was strong incentive to move from 16 bit x86 with all its segment crap (64 KB data structure limitations, near and far calls etc) to 32 bit x86. But 64 bit x86 for PCs seems little more than "blue crystals" to spur sales of new hardware and software to a maturing market.
What will the ecosystem offer after Vista's release? What 64 bit apps are under develop now? What will the cost be to upgrade software? What will the cost be to upgrade hardware bought today?
Yeah, but that's when Merom is available. Intel is right on target for 64 bits. Remember, they are the high volume producers and need to be there for the high volume market.