Nah, end-user doesn't mess with those. What I'm thinking is more of a content aggregator with less mystery - one that gives the user more control over how it reacts and weights the user's actions. One that works for you, rather than just working you.
Ahhh, and that's why I say it's the best thing we'll never get. It would be an amazing thing, but I wouldn't know where to start. It's an ambitious notion. I'm questioning the foundation of what they ultimately do. Basically "let me tell you what I'm thinking a little more directly, rather than you guessing poorly, or against my better interest."