tedster - 5:50 pm on Feb 2, 2011 (gmt 0)
Note the exact language Amit Singhal used: "...we've never used those URLs or data to put any results on Google's results page. We do not do that, and we will not do that"
If I'm reading that correctly, Singhal seems to say Google doesn't use the data for discovering new URLs... or does he say they don't use the data to affect rankings? Compared to the clarity of the second sentence, the lead-in sentence is pretty fuzzy in defining what the word "that" actually refers to.