For Maven users interested in Maven integration with Eclipse, you might want to take note of the m2eclipse proposal submitted to Eclipse a couple days ago. This work is being lead by Eugene Kuleshov (also a Subclipse and Mylyn committer). You can discuss the project with Eugene and the rest of the team, in the newly created m2e newsgroup at Eclipse:
http://www.eclipse.org/newsportal/thread.php?group=eclipse.technology.m2e