So!, after researching, for many hours. I am still confused. I have a BlackBerry Curve 8310 (AT&T) I have a $30 BB Data Plan, but in November 2009, I will need to cut my Data Plan Services due to economical reasons. The Question is: Can I use Google Maps and use the GPS function? (Please Be aware, that I will NOT HAVE A DATA PLAN!") I am also aware that my BB 8310 has GPS, but my main concern is: Will I be charged an extra fee? or something if I use the GPS app Google Maps, even if I don't have a $30 BB Data Plan on AT&T? Another Question: I was looking at this: http://www8.garmin.com/mobile/mobilext/ which is basically Garmin Mobile for Blackberry. Question: If I buy this $100 app, will this app include "pre-loaded maps?" and will I be able to use it without a Data Plan and still use my BB's GPS capabilities. If u answer my questions, thank you.