For those that may not have caught my first post on the subject, Phake is a mock framework that I announced a couple of days ago in Introducing Phake Mocking Framework. It was recommended in the comments that I get it on a pear channel somewhere, which is something I have wanted to do but hadn't had a reason to do until this week. Well, now there is an official Digital Sandwich Pear Channel that is hosting Phake.
Discover the channel with the PEAR installer and run the install with the path provided. He notes that the release is alpha because of the lack of documentation but, despite this, the API is stable. Also, you'll need to be using PHP 5.2+ to use the tool.