FutureShop is actually owned by Best Buy (which is why they typically build the stores across the street from each other -- nothing like being your own competition!), so when their big US brother started selling the iPhone 3G, we supposed it was only a matter of time before Canada got some big box love. Says MacNN:

Canadian retailer Future Shop has announced it will be selling the iPhone starting in October. Customers will be able to purchase the phone at fifteen different locations initially. The phone will still be on the Rogers network, where it has previously been available directly, or at The Telephone Booth and Wireless Wave stores.

FutureShop already sells all sorts of phones from Rogers (and subsidiary Fido), Bell, Telus, etc. so this is just one more page in their flyer.

But hey, at least it's not Radio Shack, eh?