The new Eclipse release (4.2) is out and looks great! To run a first IDE test I tried to checkout some maven projects from my svn repository. M2E and the Subversive Plugin are not installed in the Eclipse classic platform (can't understand why) but can be easily installed manually from the menu "->Help->install new Software"
After restarting Eclipse you can start importing your maven project with "->File->new-> project->Checkout Maven Projects form SCM"
The problem here is hat the SVN connector for m2e is missing and can not be installed by the dialog showing up all available maven add ons. To solve this problem go again to install new software manually and add the following update URL:
This updatesite includes the missing svn/m2e connector. After a restart you can checkout your maven project from a SVN repository using the Eclispe subversive plugin.