Thanks for reporting this issue. This was a bogus download, so I removed it.
There's no link to that file from the Developer Guide (only to Tutorial-Contact.zip and Tutorial-Contact2.zip). The file Tutorial-Contact2.zip covers both 2.0 and 2.1 -- You received this message because you are subscribed to the Google Groups "Google Web Toolkit" group. To post to this group, send email to google-web-tool...@googlegroups.com. To unsubscribe from this group, send email to google-web-toolkit+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/google-web-toolkit?hl=en.