Finally a Hudson version that supports Maven 3! Olivier Lamy has put out a version on his site as a Christmas present:
Version 1.389 was release on 24th of december and is still a snapshot version. I tried version 1.389 with Maven 3.0.1 and seems to be working fine. Now I can safely abandon Maven 2
Also make sure to check out the Maven3 support for Hudson @ hudson-ci.org.