That's unfortunate. I still regularly come across things on Google Code that are useful, usually just there because they were written before GitHub. There's very little chance the authors will bother moving after all this time and the resources will just disappear.

Heck, I even have several projects on there like a virtual pet one that's a good demo of how to color game sprites dynamically in Android and another that's a good demo of using the YouTube APIs. I doubt I'll both moving them, but it's sad other people won't be able to use my code any more so that Google can save a trivial amount of money.