Virgin Mobile has confirmed via its website that it will offer the iPhone 4 in Canada, joining Rogers/Fido, Bell, and Telus as official carriers for the handset. As with the other carriers, Virgin Mobile has yet to announce any pricing or plan details. Interestingly, although it is a subsidiary of Bell Mobility, this will mark the first time Virgin has offered the iPhone in Canada. Apple plans to launch the iPhone in Canada sometime in July. [via…