I feel like Phil lobbed this over the wall a bit early. In the interview he said it would be available on June 14th, as reported here: http://www.cmswire.com/cms/customer-experience/marketo-debuts-intelligent-targeting-tool-in-wake-of-ipo-021283.php
...however, as we all are noting, the functionality seems not to be out. The Marketo help articles on the topic are indexed by the search engine, but all seem to be generating errors.
Communications here are definitely not clear. Can someone from Product Management please comment?