Google Suggest, Beta, As you type, Google will offer suggestions. Cool! 
As you type into the search box, Google Suggest guesses what you’re typing and offers suggestions in real time. This is similar to Google’s “Did you mean?” feature that offers alternative spellings for your query after you search, except that it works in real time. For example, if you type “bass,” Google Suggest might offer a list of refinements that include “bass fishing” or “bass guitar.” Similarly, if you type in only part of a word, like “progr,” Google Suggest might offer you refinements like “programming,” “programming languages,” “progesterone,” or “progressive.” You can choose one by scrolling up or down the list with the arrow keys or mouse.
brought to you by the same fine folks behind : Google News Beta, Google Mail Beta, Google Desktop Search Beta, Froogle Beta. Maybe they should change they name to “Google Beta”?