Agreed, and yet implementing the features that make Github (& Bitbucket) what it is doesn't sound terribly difficult, and most importantly won't ruin the other

Agreed, and yet implementing the features that make Github (& Bitbucket) what it is doesn't sound terribly difficult, and most importantly won't ruin the other "project-y" features of Google code. Personally my projects are still on Google code, but Github is becoming more and more tempting.