Apple adds ads to Maps — should it quit the ad business entirely?

Apple is introducing ads to its Maps app for the first time, sparking debate given that CEO Tim Cook's 2014 open letter had criticised ad-funded services where users are the product. That letter has since been removed from Apple's website. Commentator John Gruber has suggested incoming CEO John Ternus should shut down Apple's entire ad business to stay true to the company's stated values.