Yahoo! Search is testing a beta version of a Google Instant like "content-rich Search Assist" with a fraction of searchers. If you're not in the test group, check out these screenshots to see the current versions:
The new rich Yahoo! Search Assist beta displays answers or direct links to them instantly as you type, and really pays attention to you as a user. It'll give you an instant answer for many of your searches, or a helpful set of the top-clicked results for your topic, all within the Search Assist window.
This new search innovation will change the way you consume information, making it an easy, enjoyable, and fast experience.