one of the problems here is that if you start letting the CI admin make changes to project and project group names then you are breaking the linkage between the POM and the representation of the project in continuum. Unless you start adding in mapping functionalities and thats just a pain when really, the name in the CI ought to reflect reality in the project. Now perhaps the project group is something that can be opened more for some configuration changes since it is kind of an external concept being mapped onto the poms...its using the pom that you load up for these defaults and then also making a project for that same project group, mapping it twice into continuum as a group and as a project...
On related note about defaults, POM can be used to provide clues to continuum for project grouping, with sensible fallbacks (use groupId if no <group> specified for ci managment etc). I think it would be nice to allow a set of default project group notifiers in the pom.xml itself (pretty much the way the CI notifiers are handled in 1.0.3). But I understand this is something that will need a pom be extendable, and past 1.1 :-)
Cheers, Rahul