In about an hours time, you'll be able to see something quite neat at instant.search.yahoo.com. They're launching Instant Search, an AJAX like functionality that brings up the top searches for the words you're typing as you're typing them.

It sounds a little like the Google Suggest feature, but returning actual results rather than queries.

Im off out for a couple of hours, so this post is a little premature, but Y! say it'll be live very shortly, so keep an eye on that, sounds like fun...