Some days ago I installed Xcode 3.2.6 and unfortunately I built version 1.0.2 with it. Today a user noticed that the new version was not a complete universal binary anymore - the PPC part was missing.
Now the version is again a full universal binary - sorry for the confusion.
It seems that Apple tries to get rid of PPC quickly - with Lion even Rosetta will be dismissed...
Have a good <whatever you want>