I went through the same thing grandparent post did - a lot of old tutorials. I think it would be a good idea for Ember to make a complete break and to call this 1.0 release something else.
So whatever code samples are out there on blogs and SO were from the initial days of the API when it was changing a lot. I am with you and have been going through the pain of weeding out examples from the web that works with the latest version on GitHub. There were many methods that weren't even available in the current API.
Given the paradigm shifts with Router and the Controller, maybe what the Ember team needs to do now is to stop doing everything else and finish up on the documentation for their 1.0.0-rc.1 release before it is finalized to 1.0.0