Can I activate an iphone on old cell plan - Rogers

[Meetchella]

I have a corp cell plan with Rogers that is dirt cheap using an old motorola phone. I would like an Iphone but don't want to pay the min plan of $55/mth thru Rogers when i have everything i need for $20/mth. I just want to use some of the neat phone features.
I have an older sim card not the new mini required for the iphone 4. Is there anyway I can purchase an iphone with a sim card and activate the sim card through rogers without having to up my plan and having them know I am using an iphone and having to fork out another $35 a month?

 

[eastercat]

You'll have to read in howardforums or another similar place to see if they automatically add the data plan. AT&T, when it detects the iphone, automatically adds the data plan. Rogers may be the same.

FYI, most of the neat phone features require a data plan.