GWT search widget
This search widget can be used to display multiple groups of search results at once. For e.g. if you search for "ne" you could implement a service to return results in groups, like cities, names, countries etc. This widget would then display these results in groups.
Like this (sorry for the bad art)
| Places | | New York | | New England | | New Jersey | | Names | | Anne | | Rooney | |_________________________|