what's the difference between gps enabled & built in gps in cell phones?

Question by s.riley: what is the distinction between gps enabled & constructed in gps in cell phones?
i'm planning to acquire a blackberry that have gps functions. i require a thing that does not call for me to download maps, i imply it can receive signal straight from satellites like any other gps receiver.

i'm at present employing nokia n95. the gps feature demands me to purchase maps from nokia which i found a bit waste of income.

so, what's the distinction? can you recommend me

google blackberry maps ...