Google is reading my mind?!

I wanted to look up the past tense of "lead" (not Pb) today, and so typed it into the search box on my Google homepage. Those of you who have been paying attention will have noticed that autocomplete is now more promintent among the Google services, so I wasn't suprised by the little suggestions box appearing below my search.

What caused me the shock was that the first item in the list was "past tense of lead" - after only typing "past tense "!

I'm wondering if we're going to be seeing "Google MindReader" coming out soon... maybe that's what the guys who made MentalPlex have been working on...