You might start with this thread here:
http://forum.ppcgeeks.com/showthread...ht=live+search
Additionally, the voice feature is for input of addressess, businesses, cities, etc.
You say something like "Seattle, Washington" and it'll take you to the Seattle map. From there you can say something like "Starbucks" and it'll list the Starbucks.
Hope that helps.
late,
Coz