The iPhone 4 may be launching on all the major Canadian carriers tomorrow, but we're only just now starting to get the actual details on what they'll be offering. Rogers is the first out of the gate and, for a change, it looks like folks in the US may just be a tad jealous of their northern neighbors. It's not only offering the iPhone 4 for a further discounted price -- $159 for the 16GB and $269 for the 32GB on a three-year contract (for both new and existing customers eligible for a hardware upgrade) -- but it's bringing back its 6GB data plan for $30 a month. What's more, Rogers is also offering a new iPad sharing p