Apple may never find another product with as much revenue potential as the iPhone, but it can still thrive with several new Apple Watch- or iPad-level businesses. Also: The company launches an internal project to evaluate the smart glasses market and names a new vice president of design. Plus, a look at the latest Vision Pro features — and its helpful new head strap.Last week in Power On: Apple finally finds its game console with a smaller Mac mini and the new M4 chip line....