They kept the 30-pin connector around far, far longer than most companies kept their proprietary power or data connectors. When they switched it was to somethin

They kept the 30-pin connector around far, far longer than most companies kept their proprietary power or data connectors. When they switched it was to something robust enough they wouldn't need to fiddle with it for a long time. Standards change, but at least this one hasn't changed very often. I think "once" is an allowable amount of change.