If you are talking about tethering your iphone to your tablet to get internet on your tablet, it can be challenging.
Official way: Call Rogers and make sure you have an iphone plan with tethering activated. Sometimes even if your plan is supposed to come with it, your need to call Rogers and tell them to get their head out of their butt and activate it for you. iOS5 allows tethering using 'personal hotspot' on your iphone with bluetooth, wifi or usb connection. This works pretty well with other apple devices, no promises with non-apple tablet. Best chance is probably using the wifi.
If you have trouble with some of that, or can't seem to communicate properly with the semi-literate summer job hires at the Rogers CSR then do the unoffical way: Jailbreak your phone, install Cydia and use a program called 'MyWi'. It should allow you to become a hotspot for any device. And the best part is you get to avoid contact with Rogers customer diservice.
