Hi i had to use the sat nav on my blackberry storm and as i habve unlimited internet on my contract i wasnt sure if the sat nav would use a differnt service,i contatced vodafone and they said
"Having checked your account I can confirm that you're currently on AT BB price plan with 600 minutes, Unlimited text and Mobile Internet.
I also wanted to let you know the charges for GPRS are £1.00 for first 15 MB and after that £2.00 per MB. As you've unlimited mobile internet on your account it has a fair usage policy of 500MB.
So is gprs diff to my free internet?