Re: Sorry, Itanium sucks
ARM is not exactly a clean 64bit architecture either, like amd64 it's an extension to a 32bit architecture that was never intended to be extended. The only difference is that the 32bit architecture was cleaner in the first place.
There are much cleaner 64bit implementations in the form of Alpha, POWER, MIPS and SPARC. Alpha was even a pure 64bit design with no 32bit mode at all.