Glad I found this post, the key is that after enabling the webtools, restart the eclipse to install GPE like Jason described:
Help > Install new software Click on the 'Available Software Sites' hyperlink Scroll down to the URL of "http://download.eclipse.org/webtools/updates";, select this and click Enable. Press OK *Restart Eclipse...* Try the GPE installation again -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
