> As for this specific feature, from its name I'd guess it's some form of popup? I'd tend to side with Apple then: the vast majority of popup uses are bad: ugly, extremely disruptive, inconsistent.

This is for a popover like this http://i.imgur.com/ItDZQRL.png

Not a popup like this (known as an alert in iOS) http://i.imgur.com/3U2Tq2e.png