If I can ever get a hold of an iPhone (2 week online wait, hard to get at a store), I'm going to be trying an ipad-specific data plan with one. Should be interesting. Will update with results. Conceivably this would also allow anyone with an iPad to swap sims at will to either device.

It's been done before, but I really want to confirm it for Canada - on multiple carriers no less.

I have one on order via the online store now - 2 weeks until it ships.

But I've just called a local store and they said they have stock of both models... So I'm actually just waiting on a neighbor to come with me to see if I get there before they sell out. My car is still in need of repairs, otherwise I wouldn't be writing the tail end of this message right now.