Are you a hosting Company? Intrested in providing a SharePoint 2010 Platform to new and exsisting clients then I would strongly suggest reading the documentation avalible on Microsoft.com
This white paper provides the hosting community with an overview of Microsoft SharePoint Server 2010 and the underlying Microsoft SharePoint Foundation components, and provides detailed architectural guidance to support the multi-tenancy requirements of hosters. Although this document can be used by anyone to gain an understanding of many key features in SharePoint 2010 Products, it focuses on how these new features affect and support the hosting community.
http://code.msdn.microsoft.com/Release/ProjectReleases.aspx?ProjectName=ddc&ReleaseId=4297
