Are these virii things that wouldn't be caught by Norton/Mcafee? 30-40% is a good ratio but may not be the MAJORITY that you claim. It is a nice feature but I think this is extremely optimistic. And there are plenty of other security holes they can exploit. And they can exploit ALL of them right now since service pack two isn't publicly available yet...
Reseller mike seems to have some knowledge but I'm not ready to declare him an anti-virus expert yet. It is a datapoint at least which is better than most of your data less claims before. But I would like to see some more solid figures from Norton/MS on what level of protection this actually provides. I think that having a firewall and updated virus software is pretty powerful today. Most people I know who get burned by virii don't run AV software and don't have firewalls. They also open exe files without and fear:) If you read the link I provide below, there is already an option to disable NX in service pack 2 since it may cause problems with some drivers and some applications. And it uses PAE. I thought that was kinda funny:)
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