We’re used to Google’s autocomplete function for search, and now we can expect to see the same on Twitter. When you start searching for a term, Twitter will suggest queries that you’re most likely to be interested in, as well as recognizing misspellings, with the equivalent of Google’s “did you mean” message, suggesting relevant search results.
In addition to auto-complete, Twitter will now prefill the search box with your saved searches.
This is a nice addition to Twitter search. Now when you search for a particular topic, Twitter will pull in related searches, either by hashtag or keyword.