For me the most interesting disruption is the low cost L1/L2 GPS such as Ardusimple combined with OpenAgGPS (https://github.com/farmerbriantee/AgOpenGPS) offers an alternative autosteer solutions that are currently add ons offered by manufacturers for $20 to 60k.
When working in large fields, most tractors aren't hand steered any more but still have an operator in the cab to keep an eye on the implement.
When working in large fields, most tractors aren't hand steered any more but still have an operator in the cab to keep an eye on the implement.