Micorsoft SharePoint Versions:

1. SharePoint Team Services (STS)
2. Windows SharePoint Services 2.0 (WSS) 
3. Windows SharePoint Services 3.0 (WSS)
4. Windows SharePoint Foundation 2010 (WSS 4.0) 
5. Search Server 2008 Express 
6. Search Server 2008 
7. Forms Server 2007
8. Microsoft Sharepoint Portal Server 2003
9. Microsoft Office SharePoint Server 2007 MOSS Standard
10. Microsoft Office SharePoint Server 2007 MOSS Enterprise
11. Microsoft Office Groove Server 2007
12. Microsoft Office Project Server 2007
13. Microsoft SharePoint 2010

Sharepoint2010 vs. MOSS2007

SharePoint Server 2010 Vs. MOSS2007

                               MOSS-2007 Capabilities

MOSS-2007 Capabilities

More Information:                                                                        
http://sharepoint.microsoft.com/en-us/product/capabilities/Pages/default.aspx

http://blogs.msdn.com/b/sharepoint/archive/2009/10/19/sharepoint-2010.aspx



SharePoint Server 2010

SharePoint Server 2010 Capabilities
More Information :                                                                                                                                                 

http://sharepoint2007.microsoft.com/product/capabilities/Pages/default.aspx