The Ganymede update site works well.
Just installed it on a German OS machine to test what I'm primarily
dealing with (as German Language Champion)
2 things I noticed.
1. It seems there's some caching of UI resources until you use a
particular editor...
Since the "Hierarchy" tab was still in English after update and
restarting Eclipse automatically.
Once clicked on the tab it got "translated".
A minor issue, but maybe at least in Galileo it could be fixed? (happy
to file a Bugzilla entry, do you have an idea, whether this is on the
Babel side, or rather core components of Eclipse?)
2. Mylyn sticks out very badly in Ganymede. I know Mik and his folks
promised to fix this with 3.2 Which is the target release for Galileo.
So while his contribution in the Board was certainly much appreciated,
stepping down and focussing on Mylyn and TaskTop (should a German,
French or other translation of his product be desired?) may help Galileo
to speak with a consistent tongue at least in the most common languages.