I have mixed feelings about this. On the one hand I feel this is kind of "rude" and distracting. By "rude" I mean that I haven't finished typing and the page i

I have mixed feelings about this. On the one hand I feel this is kind of "rude" and distracting. By "rude" I mean that I haven't finished typing and the page isn't waiting for its turn to interject. On the other, this is just the logical extension of autocomplete on a search form. Even on a mobile phone, we already have this kind of predictive text functionality. I guess we'll see with usage. For the most part though, I use FF's built-in search box, so I won't get to test it much.