HI, in september our son (hes 5) might need to use the school bus to drop him off near his child minders, she will pick him up from the bus stop. my wife is super worried about this in case childminder is delayed. we've seen Ibaby phone reviews and similar on the web. Anyone used one or similar? for the ibaby phone specifically I couldn't see anywhere that sold it. The feature of just pushing one button in an emergency and it dialing out seemed good. Many thanks 