Look at our GPS Mapping section, in the Sticky Notes at the top of the All Known GPS apps thread. Good stuff.
GPS data transmission does not normally rely on subscription to a certain service, however in the Verizon case, on the Storm, there are mixed results, some get GPS unlocked, some don't.
There is already a great lengthy thread here on that subject, so I will refer you to that one and close this one.
http://www.blackberryforums.com/gene...s-3-0-gps.html