Saw over at Neowin.net that GamePC has published a review on the 64-Bit Editon of Windows XP

AMD's move to 64-bit processing is much more challenging, as they are targeting home users, gamers, and everyday business folks. In these markets, the amount of software, drivers, and subsequent headaches rises by leaps and bounds. AMD's goal is to succeed where all of its competitors have failed, and succeeding in this goal not only requires flawless execution of the 64-bit hardware, but cooperation from some of the biggest names in the industry as well. There's little doubt that the key player in this equation is Microsoft, whose release of Windows XP for AMD64 will be the litmus test to see if the world is ready to accept AMD's take on 64-bit computing, or if the platform will be headed for obscurity.

Read more