A large leap, I'd say. If this name is right, this is not the iPad 2HD or iPad 2S, this is the iPad HD. They consider HD a big enough feature to name the phone after it alone. Retina display was not a minor feature when it appeared in the iPhone 4 -- that was not an incremental upgrade. This is like saying that the MacBook Air was a minor upgrade, because they named it after just one feature, its light weight.