I received my new iPad Air yesterday. The plastic wrap looked intact to me. However, I was puzzled by the fact that the iPad Air had a Serial Number starting with "DMPL8", which indicated that the unit production week in the 34th (Mid-August 2013). But to my surprise, the unit has IOS 7.0.4 installed on it already! IOS 7.0.4 was released in November 2013, and could not have been available at the time where this iPad Air was made. How did IOS 7.0.4 get into this unit that was manufactured in Mid-August 2013?