BlackBerry World - BlackBerry Navigator
I found this a very nice satnav. The only problem is, how to get it. There were rumors that blackberry will make it availible no only in UK but other countries. You were able to download it from the beta zone. However it has become very silent about this app or a release date.
It is the same program now called blackberry maps on the OS10 devices - formerly called "Gokivo".
you could send your BB to someone in UK. Then, just download the Programm from Appworld or, google a little: blackberry navigator 7.1.0 uploaded