[croddin]

>> The 30-pin dock & then the lightning connector. Not exactly industry standard at both ends

This was before the iPhone. They switched to USB on Macs at least. At that time they were using other proprietary connectors like ADB and Firewire.

[twoodfin]

Firewire (IEEE 1394) didn't show up on Macs until 1999, well after they had begun to support USB.