As you aware may of Yahoo! Search Assist was launched on the Yahoo! Search. Initially it was launched for U.S. results page but now Yahoo! has come up Search Assist for 15 other countries and hoping to more to come soon. These countries are:
Argentina
Australia
Brazil
Canada
France
Germany
India
Italy
Mexico
New Zealand
Philippines
Singapore
Spain
UK
Vietnam
This international versions of Search Assist can be accessed throught Yahoo! toolbar and My Yahoo! as well. It has taken care of local search behaviour and tendencies for local users.