The Microsoft Dynamics CRM Product Team has issued a statement on their blog saying that Dynamics CRM 4.0 is compatible with Microsoft Windows 7 and Server 2008 R2. The product will be officially be supported on Windows 7 when it lauches on October 22 this year. Congratulations to the Dynamics CRM product team on ensuring Dynamics CRM 4.0 and Windows 7 work well together.
You can read the official statement here
John O'DonnellMicrosoft Dynamics ISV Architect EvangelistMicrosoft Corporation (b) http://blogs.msdn.com/jodonnell