wmbz -
For them to call it IA32E it must be somehow different than AMD64.
I don't buy this theory. In fact, AMD may have insisted on keeping the AMD64 name to themselves. It does make a nice marketing pull for the unwashed - AMD64 sounds like a true 64-bit processor, IA32E does not.
It does show that Intel is having a tough time positioning CT and Itanium. If they were willing to put both products out there, let the best product win, they would have chosen a name such as IAx64 or IA64x.
Of course, anyone knowlegable will ignore the marketing labels. Although their managers may not...