SP n LSDS 7.3.1 - no database option

Crsb

The installer for sitepublisher 7.3.1 provides the option for "no database" and the authoring install documentation page 71 says:"
[html]
30. Perform one of the following actions:
Select No database if you do not wish to select a database for SitePublisher, and click Next. The TeamSite Reporting Database Configuration dialog box opens (Figure 26 on page 75). Go to Step 36.
To use the default database, click Next. The SitePublisher Database Driver Files and Details configuration dialog box opens.
NOTE LiveSite Display Services shares the database requirements of SitePublisher. If you select No database for SitePublisher, the installer skips the LiveSite Display Services database configuration. You can
manually configure the database later.
[/html]

does anyone know if this mean that a database is not required for SP and LSDS anymore? if yes, will they use some internal db or no db at all? or does it mean that i just don't have to provide a db now, but i will eventually need to configure it in order to use SP?