The Google Voice application for Blackberry and Android phones allows you to make outbound calls through your Google number, read transcriptions of your voicemails, make low priced international calls, and send free SMS.

Google Maps for blackberry is one of great app for your blackberry phones such as Blackberry strom, bold, curve coz you can get business locations, maps and directions while you’re on the go.

Cruising around looking for a nearby coffee shop? Driving to that new restaurant but can’t remember which street to turn right on? Now you can get business locations, maps and directions while you’re on the go. And it’s all free.

Real-time traffic

Google Maps for mobile is a free download that lets you view maps and satellite imagery, driving directions and route-planning services. The interface is similar to the original Web-based Google Maps, with menu picks conveniently mapped to the phone’s buttons. Since the application is designed for users on-the-go, it provides features like click-to-call and saved search history that are especially useful for mobile phone users.

Tool that stores GPS positions and uses that information to generate KML files that can be used by Google Earth or Google Maps for displaying realtime or prerecorded tracks.