Google Latitude (Maps):
Maps and satellite views of anywhere in the united states. It can also give you driving/walking directions and has a build in business search and you can call the business number directly from the program. Also has GPS on select mobile device's.

Latitude now lets you share your location with friends!!

Tip:
To leave Google Latitude without leaving Google maps always open, open Google maps, and to exit hit Menu, then 'Exit' and it will ask you weather you want to continue sharing after exit.

Download Here

This Program Requires WAP Setup:
(if you have T-Mobile go to BBerry Settings, then 'Advanced Options' then click on TCP, then write this in the APN "wap.voicestream.com")
(if you have Cingular I'm not so sure it depends on your plan but go to the TCP settings and try one of these two options in the APN "isp.cingular" or "wap.cingular")
If these aren't working for you please click here for a more detailed description of how to setup WAP.