That's great, until code.google.com no longer resolves, at which point it won't help :( Would be nice if they used that info to automatically redirect to the new site.
I work on Google Code, and we will be putting a service in place to redirect
deep links to project homepages, issues, etc. to their new locations.
Projects on Google Code will need to set the "project moved" flag, under the
advanced tab of the project. But once set, things should work like you
expect.