I just picked up the new pearl 8110 (AT&T). I liked the fact that it had built in GPS. The sales person said that i needed the GPS service (first month free and then $10/month) to use the GPS. I loaded up the AT&T navigator and it said that it was giving me a month free then it would cost $9.99/month. My question........is the GPS service actually paying for the AT&T navigator or are these two separate payments ($19.99 per month total for both)? If not, then do I really need the "GPS service" to use free apps like google maps?

By the way, the AT&T navigator is pretty nice