The Eclipse Ganymede M6 packages are available for download. This is your chance to give feedback [1] for the upcoming 3.4 release.
The packages are split across a number of target audiences:

Additionally, to celebrate the release in June of the Ganymede release, the foundation is encouraging people to organise DemoCamps [2], to show how you are using Eclipse. There is a list [3] of organized camps - if your city isn't included check here [4]for details on organizing your own.
Links:
[1] http://damonpoole.blogspot.com/2008/04/applying-usability-to-software.html
[2] http://www.eclipse.org/org/press-release/20080421_ganymededemocamps.php
[3] http://wiki.eclipse.org/Eclipse_DemoCamps_2008_-_Ganymede_Edition
[4] http://www.eclipse.org/community/democamp/organizedemocamp.php