@Patroclo: Did you install the Marble Maps package yet? The Marble - Virtual Globe package only contains the OpenStreetMap theme and many other themes are in the Marble Maps package. Once that is installed, open the Map View dialog in Marble's application menu and click on a different map theme to load it. I'm creating a tutorial page on map themes currently. It will show screenshots for these steps when I'm done.

@All: I just pushed Marble 1.1.1 to extras-devel. It contains a couple of minor fixes and improvements as well as the support for monav-0.3 I mentioned above. I'd like to promote it to extras-testing, but that'd mean that all the votes for Marble 1.1.0 for extras promotion would be useless. So if anyone who tested Marble 1.1.0 can give it a vote that'd be great. I just need one more vote for 1.1.0 to be able to promote it to extras. Afterwards I'll promote 1.1.1 to extras-testing. Thanks

Update: Got enough votes, thanks!