I really like this idea. However, I wanted to point out one shortcoming to the approach of putting a pile of links in your signature: if the set of useful links changes, you now have a pile of greeters with outdated signatures. What about encouraging people to link to a single editable "links for newcomers" page, perhaps on the wiki?

I don't mean to suggest that no variation should exist in the Maemo Greeter signature; certainly people should feel free to customize it, personalize it, add localized variants for the languages they speak, and so on. I just wonder if the list of links ought to become a single link.

Thoughts?