This is how journalists try to sound relevant. Don't spoil it for themPlease refrain from using war metaphors, Bwana does not approve.
There has been 5 generations of iPad, iPad Air being the 5th, iPad 3 being the introduction of retina display hence popularity as entry retina model(albeit discontinued quite quickly/6 month cycle). iPad 2 being popular only because it was continued on production till this year as base/entry model.There is no such thing as an iPad 3. It is the new iPad