Búsquedas en WSS 3.0

Para la propuesta de un proyecto nos ha surgido una duda.... ¿Que diferencias hay entre el Search de MOSS2007 y de WSS 3.0?. MS nos lo deja muy claro (o eso parece)

"Windows SharePoint Services 3.0 uses the same SharePoint search technology used by Enterprise Search in Microsoft Office SharePoint Server 2007 rather than relying on Microsoft SQL Server full-text searching, as previous versions of Microsoft Windows SharePoint Services did.

Search in Windows SharePoint Services addresses a single site collection, and is automatically scoped to current context and limited to site and subsites, list or library, or folder. If you are looking at a subsite, you cannot search over the entire site collection, but you can search over all subsites of the current site.

Only SharePoint content in the site collection can be crawled. You cannot configure Search to crawl databases, mail servers, application servers, or Web sites and file shares outside of the site collection. In a deployment with more than one site collection, each site collection provides Search only for content on that site collection, and there is no aggregation of search results across site collections.

The Windows SharePoint Services 3.0 Search service is also used to enable searching of the Help system that is built into Microsoft Office SharePoint Server 2007."

http://msdn2.microsoft.com/en-us/library/aa979515.aspx