My speculation on why Gizmodo was invited to this Apple event:
While showing off the new proximity alarm in the iWatch that alerts you when you get too far from your iPhone, Tim Cook will say "As much as we all love our iPhones, from time to time we accidentally leave them behind on the desk or in the kitchen. In fact, even some Apple engineers have been know to leave an iPhone behind at a bar, right guys?" as he looks right at the Gizmodo crew.
While showing off the new proximity alarm in the iWatch that alerts you when you get too far from your iPhone, Tim Cook will say "As much as we all love our iPhones, from time to time we accidentally leave them behind on the desk or in the kitchen. In fact, even some Apple engineers have been know to leave an iPhone behind at a bar, right guys?" as he looks right at the Gizmodo crew.