The author hints at a major issue with corporate deployments -- old machines. It's all fine, well and good that Vista runs on machines it shipped with; but many

The author hints at a major issue with corporate deployments -- old machines. It's all fine, well and good that Vista runs on machines it shipped with; but many large shops have to turn down an upgrade to Vista just because the performance is egregiously bad on older machines. By extension, it is unwise for developers to assume that Vista will be there when they need it, making it unsuitable as a platform for the near future.