That is the idea, I would like to go one step further. I see it as being in 2 possible 'states' The first would be some overview of the document and the second would be very relevant to what you are typing right now and what you are about to type. For example if you typed "Ted Nelson" right away you should get a picture, bio, birthday and anything else that may be relevant.
Some terms could use further disambiguation. For instance - 'lance armstrong' brings up lance, arms (but not arm) and armstrong (which is apparently an airport in Louisiana) but not Lance Armstrong. Cobra brings up the snake, the Cabinet Office Briefing Room but not the insurance plan.
hopefully you can tune it to ignore various words that have less impact on things and instead focus on more core and unique elements.