Having assisted in performing Vista pilot deployments for a few clients, I can tell you that there will come a point in the pilot deployment program when the help desk phones will stop ringing. At this point it is tempting to assume that the pilot program is a success, and to move forward with the full-blown deployment. But doing so would be a big mistake.
One more thing. Before moving forward, talk to the program participants. Remember that most of them are power users, and there may be issues they have had to work around themselves and not told you about. Ask them if they are having any problems and if they know of any reason why Vista shouldn't be deployed to the rest of the company. As an administrator, it's easy to get a superiority complex, but I have found that power users can provide a wealth of valuable information in situations like these. They are computer literate, and they experience the same types of situations as most casual users, so they can often tell you about potential problems and offer solutions.
How to handle your Vista migration
Step 1: How to handle your Vista migration
Step 2: Plan a pilot deployment program
Step 3: Decide on a deployment mechanism
Step 4: Train the support staff and the end users
Step 5: Assess the results of the pilot deployment program
About the author: Brien M. Posey, MCSE, has received Microsoft's Most Valuable Professional Award four times for his work with Windows Server, IIS and Exchange Server. He has served as CIO for a nationwide chain of hospitals and healthcare facilities, and was once a network administrator for Fort Knox.