We announced today the ability for Dynamics customers to buy SharePoint and have tight integration between their Dynamics environment and SharePoint. Check out the press release - http://www.microsoft.com/presspass/press/2007/mar07/03-12Day1DynamicsOfficePR.mspx
This is a continuation of the work we started with the Dynamics team. Check out the following blog post that talks about our integration with MS CRM - http://blogs.microsoft.co.il/blogs/itaysk/archive/2007/03/04/BDC-metadata-definition-file-for-Microsoft-Dynamics-CRM-3.0.aspx
We're working hard on coming out with more integration of MOSS with other Microsoft products. The list continues to grow with Dynamics, SQL Server Reporting Services, PerformancePoint, etc. Keep looking out for other MSFT products that will integrate great with SharePoint.