For most enterprises, it will take them 18 months for testing and planning before they can start deploying Windows Vista anyway, so this delay won't affect their plans all that much.
Companies on Windows 2000 will have the most additional pressure, because they need to start moving relatively early anyway.
There should be a plan and policy in place to address metadata management before you deploy Windows Vista.
They want the enterprise to have excellent Windows NT support, but they don't necessarily want to be the ones to provide it, ... Microsoft does want that involvement and to have more account control over their larger enterprise customers.
It looks like they did, to some extent, what the Department of Justice couldn't. I could see where this could make it harder for Windows and Office groups to work together, and they do need to.