How do you expect him to use the gps without. Data plan. Google maps requires data to work.
Look lets not beat around the bush with what the original poster really wants. They want to cancel their $30 iphone 3g data plan even though they know they are getting a good deal from ATT for the $199/299 subsidized iphone 3g. ATT is really planning on making money off the $30 iphone data plan (or at least recouping all the costs of subsidizing the iphone 3g)
I think the real question they want to ask is:
Can I use the iphone 3g on a illegal $15 medianet plan from ATT?
No one in their right mine would want to get the iphone 3g without some type of data plan. Plain and simple you need sometype of data plan to fully realize the iphone 3g's potential. If not, you are better off just getting iphone generation 1 or an ipod touch.
People do not want to pay the $30 "smartphone/iphone data/blackberry" internet plan when the $15 data plan works.
So what I recommend is that they just sign up for the $30 iphone data plan when they purchase their subsidized 199/299 iphone 3g. Wait about 30 days, than put the ATT Sim into a "regular ATT flip phone" Wait about a day when doing this so ATT's system catches up with the IMEI scanning.
Call ATT customer service and tell them you are using the regular flip phone and give them the IMEI number. Than log online and re-add the $15 medianet unlimited plan. Than take the ATT sim card out of the regular phone and put it back into the iphone 3g.
I will have to give you a warning here: The ATT contract clearly states the "iphone 3g requires iphone data plan" and ATT reserves the right to put you back into the correct data plan. Meaning if they catch you using the $15 medianet plan, they can and will switch you back to the $30 data plan.
My easiest solution to avoid being audited is staying on step ahead of the game. You would be an idiot if you put your ATT SIM (while on the $15 medianet plan) in your iphone 3g 100% of the time. What I usually recommend is you switch phones on a regular basis. Basically use your iphone 3g like 5 days a week. for 1-2 days, just put the ATT sim back into the regular ATT phone so ATT still thinks you are using the regular phone on a regular basis.
And to answer your question:
Yes, I've gotten ATT to delete the iphone 3g data plan from my plan. My main reason isn't to avoid the charges, it's so I can put the $30 blackberry personal data plan so I can still use my blackberry curve on a regular basis. I alternate between many phones and it's never been a problem.
