Re:No, it could be very easy. (Score 3, Interesting)

The killer moment will be when they make the search experience for files on your desktop much better. I use Google today as my homepage, but the day when I get into the habit of searching for my files using Windows (today, it's not worth the trouble), it's trivial to extend that interface to search the web as well. Unfortunately, I think google does not have a strong, defensible position.