No, it wasn’t an iPad. Please look again on an HD video, he clearly picks up a note pad. Let’s not spread stupid conspiracy theories and lies like the left do.
He picked up a note pad and left with it - then a woman came into the scene from the right and removed a second object from his podium. That second object is what they’re saying might be an iPad.
Whatever the girl pulled off the podium, Trump had the same thing on his podium. Somebody went to his podium and pulled a similar object off his podium.