As several applications requested to use Waze as one of their navigation applications, we added API support which enables an external URL, either from within another mobile application or from a mobile web-page, to invoke the Waze client application.
The Waze application can then search for an address, present an address on the map or start a navigation-session to a destination address in the following manner:
search for address:
waze://?q=<address search term>
center map to lat / lon:
set zoom (minimum is 6):
More details can be found in the http://www.waze.com/dev/documentation section