This morning I was rereading yesterday's Jobsnotes of note post, and it suddenly struck me; I had forgotten the most important one! (Picture me whacking myself on the forehead... whack!) Yes, the most important Jobsnote was 2008's introduction of the App Store. It wasn't Mr. Jobs' most dynamic presentation - I give the prize for that one to the 2007 iPhone introduction - but it was critical as it established the App ecosystem which defines iPhones today, and which made the success of the iPad possible.